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# Iteration Calculator Online

MathPrint mode versus Classic mode on the TI-84. Online scaling. Iterative methods is another algebra topic that many students struggle to grasp and it is usually due to the notation involved. Projected velocity should be taken into account during planning meeting but eventually it's the team who decides whether the sprint scope is big enough or not. Gauss-Seidel Method: It is an iterative technique for solving the n equations a square system of n linear equations with unknown x, where Ax =b only one at a time in sequence. Our award-winning work takes full advantage of our platform and experience. Analyzing fixed-point problem can help us find good root-finding methods A Fixed-Point Problem Determine the fixed points of the function = 2−2. It seems better to make a comprehensive product. p is the current value of the State pension. The resulting value is denoted by x1; and then the process is repeated, this time substituting x1 into the right side. Save data to Excel, CSV or Open Office File Format. Like I would like to have arctan(a) N Print "Not Convergent" Stop End If x0 = x1 While abs f(x1) > e 7. This application factors numbers or numeric expressions using fast algorithms ECM and SIQS. Jim Lambers MAT 772 Fall Semester 2010-11 Lecture 4 Notes These notes correspond to Sections 1. Infant Growth Charts - Baby Percentiles Overtime Pay Rate Calculator Salary Hourly Pay Converter - Jobs Percent Off - Sale Discount Calculator Pay Raise Increase Calculator Linear Interpolation Calculator Dog Age Calculator Ideal Gas Law Calculator Nursing Math Calculators Manning Equations Calculator Hydraulic Radius Formulas Calculator Darcy. Statistics, data analysis, probability and spreadsheets are all now within the realm of possibility. A collection of games, apps and art made by Paul Neave. Again, this is a very strange property!. A UI redesign for an existing retirement calculator done for Milliman. Using the memory and display functions in your scientific calculator can help you use your device to its full capacity. Equations displayed for easy reference. The Equation Solver on your TI-84 Plus calculator is a great tool for solving one-variable equations. Enter the car's MSRP, final negotiated price, down payment, sales tax, length of the lease, new car lending rate. Infant Growth Charts - Baby Percentiles Overtime Pay Rate Calculator Salary Hourly Pay Converter - Jobs Percent Off - Sale Discount Calculator Pay Raise Increase Calculator Linear Interpolation Calculator Dog Age Calculator Ideal Gas Law Calculator Mortgage Loan Calculator - Finance Darcy-Weisbach Equations Calculator Colebrook Friction Factor. The Pi attenuator consists of one series resistor and two parallel shunt resistors to ground at the input and the output. 1 min read. You can use the calculator above to check this result. Jacobi Iteration Calculator In linear algebra, the Jacobi iterative method is an algorithm for determining the solutions of a diagonally dominant system of linear equations by Donald Schaefer. Iteration calculator Enter the starting value of x in the blank and then click on the "Iterate" button. Feel free to try them now. The sample size calculator computes the critical value for the normal distribution. The specific root that the process locates depends on the initial, arbitrarily chosen x-value. Your feedback and comments may be posted as customer voice. This includes various goniometric, logarithmic and high degree equations. Press GRAPH to see the sine regression function plotted along with your scatter plot. Select a and b such that f(a) and f(b) have opposite signs. This calculator runs the Jacobi algorithm on a symmetric matrix A. In this method, just like any other iterative method, an approximate solution of the given equations is assumed, and iteration is done until the desired degree of accuracy is obtained. Installing Python Modules installing from the Python Package Index & other sources. Ideone is an online compiler and debugging tool which allows you to compile source code and execute it online in more than 60 programming languages. If you are cooking something new it’s good to test in-between, otherwise, there are chances that you may cook something which will never be liked by anyone. Also, there is an Android version for Android devices on this link Simplex On Line Calculator allows user to watch in detail step by step simplex execution and each one phase of two-phase method. Enter the number of desired cores in the form below and the number of tokens required will be returned:. MathGrapher is a graphical calculator for functions of the form F(x) and F(x,y) containing up to 20 subfunctions and 150 numerical and 100 named constants. 1 Pipe Schedule Diameter And Wall Thickness [FREE] +. Monthly Payments for Consolidation Loans. The iterative form is based on the Jacobi transition/iteration matrix Tj = inv (D)* (L+U) and the constant vector cj = inv (D)*b. Online schematic capture lets hobbyists easily share and discuss their designs, while online circuit simulation allows for quick design iteration and accelerated learning about electronics. Circular reference happens when you type a formula in one Cell which refers to another Cell, but that Cell also refers back to the Cell. , and Baleanu, D. No related posts. Installing Python Modules installing from the Python Package Index & other sources. A retirement calculator is a valuable tool when used properly, but can dangerously mislead you when used improperly. This online calculator computes fixed points of iterated functions using fixed-point iteration method (method of successive approximation). The Texas Instruments TI-84 calculator is a graphing calculator with a gold mine of features. Iteration means repetitive calculation. In the next step you will write what you want the program to do in pseudocode. This aminoglycoside calculator uses a variety of published pharmacokinetic equations and principles to estimate an appropriate aminoglycoside regimen. - The **Value Iteration** button starts a timer that presses the two buttons in turns. From there, a vertical line is drawn to the next pair (x i, x i + 1) of the iteration. The first type of Picard iteration uses. Projected velocity should be taken into account during planning meeting but eventually it's the team who decides whether the sprint scope is big enough or not. Bubble Sort Calculator - Online Calculators - Conversions - Sorts using the Bubble Sort method. Rather confusingly these application level settings are saved in each workbook, but only the settings in the first workbook opened are actioned: the settings in subsequent workbooks are ignored. Select a and b such that f(a) and f(b) have opposite signs. Current best solution is unchanged and the radius for the trust-region is diminished to 1/4 of the current iteration. Showing how to solve system of 3 linear equations directly on Casio fx-991ES calculator in EQN mode 8. One reason this method works so well is because, to show the details of the Mandelbrot set, one must have highly contrasting colors across the entire iteration range. This is essentially the Gauss-Newton algorithm to be considered later. for Statements¶. If they are complicated expressions it will take considerable amount of effort to do hand calculations or large amount of CPU time for machine calculations. The Exponential Decay Calculator is used to solve exponential decay problems. Application input. I m a university student in nigeria. 12) Full version is here. Press [=], type the function rule in terms of the independent variable that you’ve selected, and press [ENTER]. Methodology. Bubble Sort Calculator - Online Calculators - Conversions - Sorts using the Bubble Sort method. Excel Solver is an easy-to-use and powerful nonlinear regression tool as a result of its curve-fitting capacity. In this case, the long term behavior of the updating function is tending toward 0. These calculators are best used to check your work, or to compute a complicated problem. If you keep iterating this function, depending on the initial condition (the pixel), z will either go to infinity, or remain in the circle with radius 2 around the. MathPrint mode versus Classic mode on the TI-84. It includes automated burndown charts, cumulative flow diagrams and more data that I find helpful. The 3 tabs (Roots, Function Values & Convergence) show graphical the roots in the complex plan. iteration method and a particular case of this method called Newton’s method. edu is a platform for academics to share research papers. Gauss Jacobi method is the first iterative method used to solve linear system of equations. Jim Lambers MAT 772 Fall Semester 2010-11 Lecture 4 Notes These notes correspond to Sections 1. Advanced Math Solutions – Integral Calculator, advanced trigonometric functions, Part II In the previous post we covered integrals involving powers of sine and cosine, we now continue with integrals involving. image/svg+xml. Estimate the average annual growth rate in the net cash flow. - The **Value Iteration** button starts a timer that presses the two buttons in turns. The secant method requires evaluating the given function f and its derivative f'. The Iterative solutions are generated by breaking the formulas in two parts, that which is left of the equal sign and that which is right of the equal sign. Colebrook-White Equation. The output is the solution vector x. Jacobi Method (via wikipedia): An algorithm for determining the solutions of a diagonally dominant system of linear equations. Only this variable may occur in the iteration term. To view the requested content, install the latest version of one of the following modern web browsers:. First of all this is not as hard as it sounds. A collection of games, apps and art made by Paul Neave. The equation must therefore be solved by iteration. 5- First four iterations of Koch loop The area of the fourth iteration of the fractal loop, which is a key parameter for small loop antennas, with radius R, is given by, 3 12 48 192 1 3 3 22 (1 ) 2. Solving For APR By Iteration There's no need to work through this discussion if your interest is limited to calculating basic mortgage payments. Big O specifically describes the worst-case scenario, and can be used to describe the execution time required or the space used (e. But what if we have to find 2 raised to the power very large number such as 1000000000? We discuss how to find solution to such a problem using an fast, efficient algorithm. Views: front/side elevation and plan view Video 354 Practice Questions. is called the dominant eigenvalueof A if The eigenvectors corresponding to are called 1 dominant eigenvectorsof A. The Secant Method One drawback of Newton’s method is that it is necessary to evaluate f0(x) at various points, which. The online home of Runner's World magazine Australia and New Zealand. Excel cannot automatically calculate a formula that refers to the cell — either directly or indirectly — that contains the formula. any help at all. Mohsin Siddique Assistant Professor 1 2. This is made possible by computers that can run calculations repeatedly to find the likelihood of possible answers by getting closer to the results from different angles. It's free to sign up and bid on jobs. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. In this case, the long term behavior of the updating function is tending toward 0. Kelley North Carolina State University Society for Industrial and Applied Mathematics Philadelphia 1995. I hope this wets your appetite for scripting. Binary numbers multiplication is a part of arithmetic operations in digital electronics. If we are not, maybe we have to manage iterative development in an iterative way, rather than managing it in an incremental development way. All artwork, screenshots, characters, vehicles, storylines, world facts or other recognizable features of the intellectual property relating to these trademarks are likewise the intellectual property of CCP hf. The given below is the online simplex method calculator which is designed to solve linear programming problem using the simplex algorithm as soon as you input the values. Get the free "Newton-Raphson Method" widget for your website, blog, Wordpress, Blogger, or iGoogle. This calculator runs the Jacobi algorithm on a symmetric matrix A. This is a toy version of the algorithm and is provided solely for entertainment value. The friction factor is then used in the Darcy-Weisbach formula to calculate the fluid frictional loss in a pipe. active oldest votes. Therefore, x = 1. Find more Mathematics widgets in Wolfram|Alpha. Department of Education’s College Scorecard has the most reliable data on college costs, graduation, and post-college earnings. As recursion variables in the formula, v for r(n-1), w for r(n-2), x for r(n-3), y for r(n-4) and z for r(n-5) are used. As multiplication is the repetition of additions ( $$2 \times 3 = 2+2+2$$ ), as exponentiation is the repetition of multiplications ( $$2^3 = 2 \times 2 \times 2$$ ), the knuth arrows is the repetition of exponentiations (also called iterated exponentiation). The Algorithm for The Gauss-Seidel Iteration Method. an iterative technique to solve for σ. The Algorithm K-means (MacQueen, 1967) is one of the simplest unsupervised learning algorithms that solve the well known clustering problem. Rather confusingly these application level settings are saved in each workbook, but only the settings in the first workbook opened are actioned: the settings in subsequent workbooks are ignored. 1 A Case Study on the Root-Finding Problem: Kepler’s Law of Planetary Motion The root-ﬁnding problem is one of the most important computational problems. The Golden Section Calculator is used to calculate the missing values to complete the golden section. Worksheets are. Given two integers x and n where n is non-negative, efficiently compute the value of power function pow(x, n) using Divide & Conquer. The outstanding results with the fx-CG50 graphic calculator at Hamstead Hall Academy. - The **Value Iteration** button starts a timer that presses the two buttons in turns. The best retirement calculators allow you to model your financial plan by varying input assumptions and then projecting those assumptions into the future. The equation must therefore be solved by iteration. As the industry’s only supplier of all major RF-to-digital functional building blocks that extend from antenna to processor, Analog Devices supports its broad RF-IC portfolio with a comprehensive suite of design tools. Distributing Python Modules publishing modules for installation by others. Interestingly, it can be shown that the Surface Area of the Menger Sponge increases with each iteration, while the Volume decreases with each iteration. Java For Loop. Each diagonal element is solved for, and an approximate value is plugged in. To view the requested content, install the latest version of one of the following modern web browsers:. Gauss Jacobi method is the first iterative method used to solve linear system of equations. Component of Water Supply System 3 (1). This code calculates roots of continuous functions within a given interval and uses the Bisection method. Excel calculations: automatic, manual, iterative by Svetlana Cheusheva | updated on August 9, 2018 9 Comments The tutorial explains the basics of Excel calculation settings and how to configure them to have formulas recalculated automatically and manually. The friction factor is then used in the Darcy-Weisbach formula to calculate the fluid frictional loss in a pipe. Unlike the other regression commands, SinReg does not allow you to use a frequency list for data. Iterative Merge Sort: The above function is recursive, so uses function call stack to store intermediate values of l and h. For those of you with graphing calculators (or who like to plot in Excel), plot the polynomial and estimate where the roots are by zooming in or using the trace option: Method 4: Maple I know that not many of you feel comfortable with Maple, but it is the quickest and most accurate way - you might want to give it a try at least once…. Integer factorization calculator. Videos, worksheets, 5-a-day and much more. This online APY Calculator will calculate the Annual Percent Yield, also known as the Effective Annual Rate (EAR), from a stated nominal or annual interest rate and a given interest compounding frequency. Matlab File (s) N is the maximum number of iterations. Propensity score matching creates sets of participants for treatment and control groups. You need to show directly that implies (note that this isn't true for general x because the iteration can grow if x is negative). cap calculator cryptogram calc crypto des calc asn1 decoder banking pin translation keyshare tools misc hex dump char converter research banking t&c pin usage relay attack sca in psd2 bentham’s gaze. Estimate the average annual growth rate in the net cash flow. The height or depth of a tree is number of edges or nodes on longest path from root node to leaf node. Newton-Raphson Method is a root finding iterative algorithm for computing equations numerically. For math, science, nutrition, history. 5, then your calculator is in DEGREE mode. The ClassWiz also allows me to teach concepts I never could before. Easy to use and read. We're looking for orthogonal Q and diagonal Lambda such that AQ=Q Lambda. The INVERSE algorithm involves iteration to find the solution. data services TOOLS & RESOURCES. How to use Ideone? Choose a programming language, enter the source code with optional input data and you are ready to go!. Related Symbolab blog posts. See Trust-Region Algorithm. This simple t-test calculator, provides full details of the t-test calculation, including sample mean, sum of squares and standard deviation. I have read my manual for the Casio fx-991ES PLUS and looked on the web including YouTube but can't find anything to do with iteration. For example, the Newton-Raphson iteration looks like this: x(n+1)=(x(n)+a/x(n))/2. Free online calculators, formulas, step by step procedures, practice problems and real world problems to practice and learn math, finance and engineering calculations which covers a wide range of topics such as pre-algebra, algebra, geometry, finance, probability & statistics, digital computation, currency conversion, time tables and more. As provided, the spreadsheet uses the Antoine equation for vapor pressure. Create graphs, solve equations, create tables, lists, parabolas using Desmos. a fixed amount of at least $50 each month and; made for a period of between 10 and 30 years for Direct Consolidation Loans and FFEL Consolidation Loans. Free Matrix Eigenvalues calculator - calculate matrix eigenvalues step-by-step. Matrix Multiplication Calculator Here you can perform matrix multiplication with complex numbers online for free. Open up the new spreadsheet without the deliberate circular references. First, consider the IVP It is not hard to see that the solution to this problem is also given as a solution to (called the integral associated equation) The Picard iterative process consists of constructing a sequence of functions which will get closer and closer to the desired solution. The person. Ideone is an online compiler and debugging tool which allows you to compile source code and execute it online in more than 60 programming languages. Calculator for finite Markov chain (FUKUDA Hiroshi, 2004. • To say that something is the most likely value is not the same as saying it is likely;. We know how to find 2 raised to the power 10. Monthly Payments for Consolidation Loans. image/svg+xml. Sponsored Links. Computing the Square Root of a Positive Number Problem Statement. This calculator (as well as the 2 unknown and 4 unknown calculator) finds the solutions by evaluating determinants using Cramer's rule. About the calculator. Iterative Solutions of Homogeneous Linear Systems. Notes: § Do not use commas in large numbers. Schematic Diagram of Water Supply System Note: Surface water requires more advanced treatment then for groundwater 3. (A unimodal function contains only one minimum or maximum on the interval [a,b]. Newton's method requires only one new function evaluation in each iteration. The program assumes that the provided points produce a change of sign on the function under study. The ClassWiz also allows me to teach concepts I never could before. i was trying to find a calculator online which would provide all the iterations and subiterations of the intervals necessary to find the root of the function i typed in. Get the free "Double Integral Calculator" widget for your website, blog, Wordpress, Blogger, or iGoogle. The nodes are arranged in the proper order accor. Clear and Free! Simple Calculator - A nice Simple Free Online Calculator. Jacobi's Algorithm is a method for finding the eigenvalues of nxn symmetric matrices by diagonalizing them. iteration: [noun] the action or a process of iterating or repeating: such as. The square root of a positive number b can be computed with Newton's formula: where x above starts with a "reasonable" guess. 6180339887): The total length a + b is to the length of the longer segment a as the length of a is to the length of the shorter segment b. Using the solution for the first iteration, we can easily calculate the area of the second iteration. We will now look at the algorithm for the Gauss-Seidel Iteration method for solving the system of equations$Ax. Your proposed iteration using $\,\log\,$ only requires a fast way to calculate $\,\log. Leave a Reply Cancel reply. The particular ever-changing digital technology is actually I Need To Borrow 200 Dollars eventually producing existence we know better and fewer hassle-free. Scrum teams know that velocity is a rough estimate for the amount of work that a team can accomplish in a given sprint. Solve the linear system of equations for matrix variables using this calculator. The method implemented is the Jacobi iterative. The big m method is a modified version of the simplex method in linear programming (LP) in which we assign a very large value (M) to each of the artificial variables. Given two integers x and n where n is non-negative, efficiently compute the value of power function pow(x, n) using Divide & Conquer. Dijkstra's algorithm is an algorithm that will determine the best route to take, given a number of vertices (nodes) and edges (node paths). Loop is used in programming to repeat a specific block of code. f(x) = (dy/dx) f'(x) = Make sure you enclose powers in brackets. The app then determines the solution of a linear equation by the Gauss-Jacobi method. Area of the first iteration can easily be calculated by using Pythagoras. a procedure in which repetition of a sequence of operations yields results successively closer to a desired result. Get the free "Newton-Raphson Method" widget for your website, blog, Wordpress, Blogger, or iGoogle. Do you want to remove all your recent searches?. Census Bureau released the remaining profiles and tables for the 2018 American Community Survey (ACS) 1-year estimates. An online adaptive reinforcement learning algorithm (policy iteration) is developed to solve the dynamic graphical games in real time. Kelley North Carolina State University Society for Industrial and Applied Mathematics Philadelphia 1995. The site is a repository for encyclopedic articles, news, and information on all topics related to pavements. The Exponential Decay Calculator is used to solve exponential decay problems. Introduces the de nition of rate of convergence for sequences and applies this to xed-point root- nding iterative methods. Our calculator is capable of solving systems with a single unique solution as well as undetermined systems which have infinitely many solutions. 2$ of Elementary Functions: Algorithms and Implementation by Jean-Michel Muller or some other method you can choose. In the modern world, there is a dire need of people who can communicate in different languages. The Algorithm for The Gauss-Seidel Iteration Method. Simply enter a list of numbers into the text box and click sort. Type can be set to Divergent, Convergent, or Convergent or Divergent and determines the method used to terminate the orbit iteration. Create your hashes online. Thus, at the logical limit of infinite iterations, the Volume goes to 0, and the Surface Area goes to infinity (∞). The given below is the online simplex method calculator which is designed to solve linear programming problem using the simplex algorithm as soon as you input the values. Round Ducts: Show me what these round elbows look like. Just copy and paste the below code to your webpage where you want to display this calculator. Alliterative Sentence Generator Toggle navigation Alliteration App lication s. Bubble Sort Calculator - Online Calculators - Conversions - Sorts using the Bubble Sort method. In any event. Iterative Meaning in Urdu - In the age of digital communication, it is better for any person to learn and understand multiple languages for the better communication. As a base calculator it works well and fits my needs for the time being. Results for the actual trend and team burn rate will vary significantly based on the duration that you set for the iteration. It is currently provided to perform calculations using the one-term Margules equations, but be modified for other activity relations. Videos, worksheets, 5-a-day and much more. Acquire More Through Your Direct Generation Personal Loan Institutions With This Particular Post Direct age group is a thing quite a few people would like to learn about, nonetheless they dont know where to get started off. Free Matrix Eigenvalues calculator - calculate matrix eigenvalues step-by-step. Iteration using ModelBuilder in ArcGIS 10 - YouTube. Iteration is a way of solving equations. A better alternative is out there. Begin with x(0) = 2, and try the iteration scheme x(k+1) = ln(2 + x(k)): If this method converges (lets say lim x(k) as =>inf = e), determine it’s order. Complex Number Calculators : Addition And Subtraction Of Complex Numbers A Complex Number is a unit that is devided up into two parts, a real part and an imaginary part. It is currently provided to perform calculations using the one-term Margules equations, but be modified for other activity relations. Setting the response distribution to 50% is the most conservative assumption. txt file in ECB and CBC mode with 128, 192,256 bit. For example, using Newton-Raphson iteration to compute the square root of 2 using the initial guess x(0)=1, you obtain the sequence (correct digits. **Note: All of our calculators allow SI prefix input. In the chapter on iterative methods it tells me "using a standard Casio calculator, you would first key 1 EXE". I did run into one Bulbasaur without any combinations. SENNING Abstract. Excel calculations: automatic, manual, iterative by Svetlana Cheusheva | updated on August 9, 2018 9 Comments The tutorial explains the basics of Excel calculation settings and how to configure them to have formulas recalculated automatically and manually. Your email address will not be. Magma Calculator Enter your code in the box below. Interpret the calculator: initial value is 1, the next is 15, and so on. In the Maximum iterations box, type the number of iterations that you want to set as the maximum number of times Excel recalculates. t test calculator A t test compares the means of two groups. Using a two byte checksum will result in 65,536 possible different checksum values and when a four byte value is used there are more than four billion possible values. Extending and Embedding tutorial for C/C++ programmers. If we are not, maybe we have to manage iterative development in an iterative way, rather than managing it in an incremental development way. • Avoid use and storage of the calculator in areas subjected to temperature extremes, and large amounts of humidity and dust. The calculator will find the approximate solution of the first-order differential equation using the Euler's method, with steps shown. In this article, you will learn to create a for loop in Java programming. Range names are used so that users can add/delete rows/columns and. Calculator for iterations with one start value. (Vector Norm) A vector norm kxkis any mapping from Rnto Rwith the following three properties. Then it will attempt to solve the equation by using one or more of the following: addition, subtraction, division, taking the square root of each side, factoring, and completing the square. About Exponential Decay Calculator. Source (2). Given two (x, y) pairs and an additional x or y, compute the missing value. Revised Variational Iteration Method for Solving Systems of Nonlinear Fractional-Order Differential Equations Ünlü, C. One reason this method works so well is because, to show the details of the Mandelbrot set, one must have highly contrasting colors across the entire iteration range. Available as a mobile and desktop website as well as native iOS and Android apps. This aminoglycoside calculator uses a variety of published pharmacokinetic equations and principles to estimate an appropriate aminoglycoside regimen. This is essentially the Gauss-Newton algorithm to be considered later. Use Desmos to create graphs of complex equations, functions and polynomials. He proposes to calculate it by an iterative process. If we refer back to Figure 3, you’ll notice that there are two additional settings related to iterative calculations: Maximum Iterations: The default value is 100, which means Excel will try 100 times to resolve the calculation before it gives up. In the chapter on iterative methods it tells me "using a standard Casio calculator, you would first key 1 EXE". Iterative Merge Sort: The above function is recursive, so uses function call stack to store intermediate values of l and h. 00 Sharp EL-W535 over 330 advanced scientific functions and utilizes WriteView Technology, 4-line display and Multi-Line Playback to make scientific equations easier for students to solve. The optional argument iterations should come before the data lists, and if provided will change the amount of time and effort the calculator spends on the problem. Check out the Scale of The Universe right now! Amazing to see. Fractals are produced using an iteration process. It is a work horse educational tool, but it is also a bit long in the tooth. How to use the Calculator app When you first open the Calculator app, you're presented with the basic Calculator interface: A 10-digit (0-9) virtual keypad with controls for decimals, clearing the equation, adding positivity or negativity to a number, turning a number into a percentage, dividing, multiplying, subtracting, adding, and. You would usually use iteration when you cannot solve the equation any other way. SHA1 and other hash functions online generator sha-1 md5 md2 md4 sha256 sha384 sha512 ripemd128 ripemd160 ripemd256 ripemd320 whirlpool tiger128,3 tiger160,3 tiger192,3 tiger128,4 tiger160,4 tiger192,4 snefru gost adler32 crc32 crc32b haval128,3 haval160,3 haval192,3 haval224,3 haval256,3 haval128,4 haval160,4 haval192,4 haval224,4 haval256,4. Includes 53 different calculations. Simplex Algorithm Calculator is an online application on the simplex algorithm and two phase method. Type the following: y=2x+1; Try it now: y=2x+1 Clickable Demo Try entering y=2x+1 into the text box. Part of Teacher Resources on Line (trol) part of the Cleave Books site you will find a range of specialist calculators covering topics in several different catagories in Mathematics; for example under 2D shapes we have a right-angled Triangles calculator: Calculators & Tools – Menu. This will allow you to remember techniques and not answers on retries. The procedure follows a simple and easy way to classify a given data set through a certain number of clusters (assume k clusters) fixed a priori. Calculates the root of the equation f(x)=0 from the given function f(x) and its derivative f'(x) using Newton method. Such an iteration scheme will converge to the root of equation (2. The process is then iterated until it converges. Iterative definition is - involving repetition: such as. Simply enter a list of numbers into the text box and click sort. I'm guessing you mean. This regimen can be completely empiric, where the dose is based on body weight, height, and creatinine clearance, or a regimen may be calculated based on one or more drug. Just type in any box, and the conversion is done "live". Online calculator. Use of this system is pretty intuitive: Press "Example" to see an example of a linear programming problem already set up. CSE 473: Artificial Intelligence Markov Decision Processes (MDPs) PS2 online now! Due on Wed. Like I would like to have arctan(a) N Print "Not Convergent" Stop End If x0 = x1 While abs f(x1) > e 7. The hyperlink to [Newton method f(x),f'(x)] Newton method f(x),f'(x) Calculator. Even if an exact solution does not exist, it calculates a numerical approximation of roots. Designated non-mathematics subjects. This is a further (third) update/edit to an article I first wrote 3 years back and then updated a year back. Summary: Newton's Method is a fast way to home in on real solutions of an equation. All basic calculators are not equipped equally. Magma Calculator Enter your code in the box below. One reason this method works so well is because, to show the details of the Mandelbrot set, one must have highly contrasting colors across the entire iteration range. Analyzing fixed-point problem can help us find good root-finding methods A Fixed-Point Problem Determine the fixed points of the function = 2−2. The outstanding results with the fx-CG50 graphic calculator at Hamstead Hall Academy. You would usually use iteration when you cannot solve the equation any other way. (See row 20 as an example. The Fourier based iterative algorithm. Here is another example, starting at 0. 12) Full version is here. Like I would like to have arctan(a) N Print "Not Convergent" Stop End If x0 = x1 While abs f(x1) > e 7. It amounts to making an initial guess of x0 and substituting this into the right side of the equation. Iterative calculations can help find the solution to mathematical problems by running calculations over and over using previous results. An online Iteration calculator to solve a system of linear equations by Gauss Seidel Method, also known as the Liebmann method or the method of successive displacement. Recursion Calculator A recursion is a special class of object that can be defined by two properties: 1. Repeat the calculation, and plot log (x(k) -e) on the y axis against log (x(k-1) -e) on the x axis. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to$585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over$1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported:


text:
In the following, you can find the information on how to properly format your final manuscript for the 10th International Symposium on Networks-on-Chip (NOCS). The proceedings will be published by IEEE and included in the IEEE Xplore Database. Papers submitted to NOCS must use the two-column IEEE conference proceedings format, and must be submitted as a PDF file. A template for Microsoft Word and LaTeX can be downloaded here. The length of regular papers is limited to 8 pages. The length of short papers is limited to 4 pages.

 Final manuscript deadline May 18, 2016 May 31, 2016 Paper submission website: Submission Website

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### Tutorials

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### Demos

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format: plain


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# What is the distance between (2 ,(5 pi)/6 ) and (-1 , (19 pi )/12 )?

Mar 18, 2018

$d = \sqrt{5 - 2 \setminus \sqrt{2}} \setminus \approx 1.47$

#### Explanation:

Distance for cartesian coordinate systems in two-dimensions would be given as:

$d = \sqrt{{\left({x}_{2} - {x}_{1}\right)}^{2} + {\left({y}_{2} - {y}_{1}\right)}^{2}}$

In polar coordinates, we have to change into using $r$ and $\setminus \theta$. We do this by using:

$x = r \cos \left(\setminus \theta\right)$
$y = r \sin \left(\setminus \theta\right)$

I'll spare the steps of deriving and give the result:

$d = \setminus \sqrt{{r}_{1}^{2} + {r}_{2}^{2} - 2 {r}_{1} {r}_{2} \cos \left(\setminus {\theta}_{1} - \setminus {\theta}_{2}\right)}$

We are given:
${r}_{1} = 2$, $\setminus {\theta}_{1} = \frac{5 \setminus \pi}{6}$
${r}_{2} = - 1$, $\setminus {\theta}_{2} = \frac{19 \setminus \pi}{12}$

The distance is then:

$d = \setminus \sqrt{{\left(2\right)}^{2} + {\left(- 1\right)}^{2} - 2 \left(2\right) \left(- 1\right) \cos \left(\frac{5 \setminus \pi}{6} - \frac{19 \setminus \pi}{12}\right)}$

$= \setminus \sqrt{4 + 1 + 4 \cos \left(\frac{- 9 \setminus \pi}{12}\right)}$

$= \setminus \sqrt{5 + 4 \cos \left(\frac{- 3 \setminus \pi}{4}\right)}$

$\implies \textcolor{g r e e n}{d = \sqrt{5 - 2 \setminus \sqrt{2}} \setminus \approx 1.47}$


text:
## Banach Journal of Mathematical Analysis

### Wavelet characterizations of Musielak–Orlicz Hardy spaces

#### Abstract

In this article, via establishing a new atomic characterization of the Musielak–Orlicz Hardy space $H^{\varphi}({\mathbb{R}}^{n})$ [which is essentially deduced from the known molecular characterization of $H^{\varphi}({\mathbb{R}}^{n})$] and some estimates on a new discrete Littlewood–Paley $g$-function and a Peetre-type maximal function, together with using the known intrinsic $g$-function characterization of $H^{\varphi}({\mathbb{R}}^{n})$, the authors obtain several equivalent characterizations of $H^{\varphi}({\mathbb{R}}^{n})$ in terms of wavelets, which extend the wavelet characterizations of both Orlicz–Hardy spaces and the weighted Hardy spaces, and are available to the typical and useful Musielak–Orlicz Hardy space $H^{\log}({\mathbb{R}}^{n})$. The novelty of this approach is that the new adapted atomic characterization of $H^{\varphi}({\mathbb{R}}^{n})$ compensates the inconvenience in applications of the supremum appearing in the original definition of atoms, which play crucial roles in the proof of the main theorem of this article and may have further potential applications.

#### Article information

Source
Banach J. Math. Anal., Volume 12, Number 4 (2018), 1017-1046.

Dates
Accepted: 26 March 2018
First available in Project Euclid: 4 September 2018

https://projecteuclid.org/euclid.bjma/1536048016

Digital Object Identifier
doi:10.1215/17358787-2018-0010

Mathematical Reviews number (MathSciNet)
MR3858759

Zentralblatt MATH identifier
06946301

#### Citation

Fu, Xing; Yang, Dachun. Wavelet characterizations of Musielak–Orlicz Hardy spaces. Banach J. Math. Anal. 12 (2018), no. 4, 1017--1046. doi:10.1215/17358787-2018-0010. https://projecteuclid.org/euclid.bjma/1536048016

#### References

• [1] A. Bonami, J. Feuto, and S. Grellier, Endpoint for the DIV-CURL lemma in Hardy spaces, Publ. Mat. 54 (2010), no. 2, 341–358.
• [2] A. Bonami and S. Grellier, Hankel operators and weak factorization for Hardy-Orlicz spaces, Colloq. Math. 118 (2010), no. 1, 107–132.
• [3] A. Bonami, S. Grellier, and L. D. Ky, Paraproducts and products of functions in $BMO({\mathbb{R}}^{n})$ and ${\mathcal{H}}^{1}({\mathbb{R}}^{n})$ through wavelets, J. Math. Pures Appl. (9) 97 (2012), no. 3, 230–241.
• [4] A. Bonami, T. Iwaniec, P. Jones, and M. Zinsmeister, On the product of functions in BMO and $H^{1}$, Ann. Inst. Fourier (Grenoble) 57 (2007), no. 5, 1405–1439.
• [5] I. Daubechies, Orthonormal bases of compactly supported wavelets, Comm. Pure Appl. Math. 41 (1988), no. 7, 909–996.
• [6] C. Fefferman and E. M. Stein, $H^{p}$ spaces of several variables, Acta Math. 129 (1972), no. 3-4, 137–193.
• [7] J. García-Cuerva and J. M. Martell, Wavelet characterization of weighted spaces, J. Geom. Anal. 11 (2001), no. 2, 241–264.
• [8] E. Hernández and G. Weiss, A First Course on Wavelets, CRC Press, Boca Raton, FL, 1996.
• [9] E. Hernández, G. Weiss, and D. Yang, The $\varphi$-transform and wavelet characterizations of Herz-type spaces, Collect. Math. 47 (1996), no. 3, 285–320.
• [10] S. Hou, D. Yang, and S. Yang, Lusin area function and molecular characterizations of Musielak-Orlicz Hardy spaces and their applications, Commun. Contemp. Math. 15 (2013), no. 6, art. ID 1350029.
• [11] M. Izuki, Boundedness of sublinear operators on Herz spaces with variable exponent and application to wavelet characterization, Anal. Math. 36 (2010), no. 2, 33–50.
• [12] M. Izuki, E. Nakai, and Y. Sawano, Wavelet characterization and modular inequalities for weighted Lebesgue spaces with variable exponent, Ann. Acad. Sci. Fenn. Math. 40 (2015), no. 2, 551–571.
• [13] T. S. Kopaliani, Greediness of the wavelet system in $L^{p(t)}({\mathbb{R}})$ spaces, East J. Approx. 14 (2008), no. 1, 59–67.
• [14] L. D. Ky, Bilinear decompositions and commutators of singular integral operators, Trans. Amer. Math. Soc. 365 (2013), no. 6, 2931–2958.
• [15] L. D. Ky, Bilinear decompositions for the product space $H^{1}_{L}\times\mathrm{BMO}_{L}$, Math. Nachr. 287 (2014), no. 11–12, 1288–1297.
• [16] L. D. Ky, New Hardy spaces of Musielak-Orlicz type and boundedness of sublinear operators, Integral Equations Operator Theory 78 (2014), no. 1, 115–150.
• [17] L. D. Ky, Endpoint estimates for commutators of singular integrals related to Schrödinger operators, Rev. Mat. Iberoam. 31 (2015), no. 4, 1333–1373.
• [18] Y. Liang, J. Huang, and D. Yang, New real-variable characterizations of Musielak-Orlicz Hardy spaces, J. Math. Anal. Appl. 395 (2012), no. 1, 413–428.
• [19] Y. Liang, E. Nakai, D. Yang, and J. Zhang, Boundedness of intrinsic Littlewood-Paley functions on Musielak-Orlicz Morrey and Campanato spaces, Banach J. Math. Anal. 8 (2014), no. 1, 221–268.
• [20] Y. Liang and D. Yang, Musielak-Orlicz Campanato spaces and applications, J. Math. Anal. Appl. 406 (2013), no. 1, 307–322.
• [21] Y. Liang and D. Yang, Intrinsic square function characterizations of Musielak-Orlicz Hardy spaces, Trans. Amer. Math. Soc. 367 (2015), no. 5, 3225–3256.
• [22] H. P. Liu, The wavelet characterization of the space weak $H^{1}$, Studia Math. 103 (1992), no. 1, 109–117.
• [23] S. Lu, Four Lectures on Real $H^{p}$ Spaces, World Scientific, River Edge, NJ, 1995.
• [24] Y. Meyer, Wavelets and Operators, Cambridge Stud. Adv. Math. 37, Cambridge Univ. Press, Cambridge, 1992.
• [25] E. M. Stein, Singular Integrals and Differentiability Properties of Functions, Princeton Univ. Press, Princeton, 1970.
• [26] E. M. Stein, Harmonic Analysis: Real-variable Methods, Orthogonality, and Oscillatory Integrals, Princeton Univ. Press, Princeton Math. Ser. 43, Princeton, 1993.
• [27] E. M. Stein and G. Weiss, On the theory of harmonic functions of several variables, I: The theory of $H^{p}$-spaces, Acta Math. 103 (1960), 25–62.
• [28] M. H. Taibleson and G. Weiss, “The molecular characterization of certain Hardy spaces” in Representation Theorems for Hardy Spaces, Astérisque 77, Soc. Math. France, Paris, 1980, 67–149.
• [29] H. Triebel, Theory of Function Spaces, III, Monogr. Math. 100, Birkhäuser, Basel, 2006.
• [30] H. Wang and Z. Liu, The wavelet characterization of Herz-type Hardy spaces with variable exponent, Ann. Funct. Anal. 3 (2012), no. 1, 128–141.
• [31] S. Wu, A wavelet characterization for weighted Hardy spaces, Rev. Mat. Iberoam. 8 (1992), no. 3, 329–349.
• [32] D. Yang, Y. Liang, and L. D. Ky, Real-Variable Theory of Musielak-Orlicz Hardy Spaces, Lecture Notes in Math. 2182, Springer, Cham, 2017.
• [33] D. Yang and S. Yang, Local Hardy spaces of Musielak-Orlicz type and their applications, Sci. China Math. 55 (2012), no. 8, 1677–1720.
• [34] D. Yang, C. Zhuo, and E. Nakai, Characterizations of variable exponent Hardy spaces via Riesz transforms, Rev. Mat. Complut. 29 (2016), no. 2, 245–270.


text:
# What happens if you x-ray an x-ray?

The title largely sums up my question, what does happen if you either x-ray an x-ray, or point two x-ray generators at each other?

-
since an x-ray is nothing but an electromagnetic wave (with high frequency), what do you think would happen? –  Physicsworks Oct 6 '11 at 10:00
XX-Rays would probably form... –  valdo Oct 6 '11 at 20:44
You can see the internals of the X-ray machine. –  Calmarius Sep 3 '12 at 12:26

X-rays are electromagnetic waves, just as light rays are. The difference is in the wavelength (thus frequency and Energy

).

So your question has the same answer as "What happens if you shine light on light" or "What happens if you point a light ray at a light ray".

Classically, you will see the same effects you see with usual light rays, interference, diffraction, etc.

On a quantum-level, you will even be able to see direct interaction (light with light, or analogously x-ray with x-ray), as described in quantum electrodynamics (QED).

-
as photons' are uncharged I didn't think they interacted directly? –  Nic Oct 6 '11 at 10:41
well not directly in the sense of first order QED diagrams. But going to higher orders you can have photon-photon scattering without any problems. –  luksen Oct 6 '11 at 11:07
via pair-production loops? I'm no particle physicist! –  Nic Oct 6 '11 at 11:13
The first contribution to light-light scattering is the box diagram with electron/positron going around the loop. For slowly varying fields, this dynamics is captured by the Euler-Heisenberg lagrangian - the seminal low-energy effective action. –  Simon Oct 6 '11 at 12:26
@Simon, why don't you add that as an answer? also if you can say something at what intensities/frequencies one is expected to see measurable effects, it would be great –  lurscher Oct 6 '11 at 17:26


text:
# Entropy and the value of information for investors

Abstract : Consider any investor who fears ruin when facing any set of investments that satisfy no-arbitrage. Before investing, he can purchase information about the state of nature in the form of an information structure. Given his prior, information structure $\alpha$ is more informative than information structure $\beta$ if, whenever he is willing to buy $\beta$ at some price, he is also willing to buy $\alpha$ at that price. We show that this informativeness ordering is complete and is represented by the decrease in entropy of his beliefs, regardless of his preferences, initial wealth, or investment problem. We also show that no prior-independent informativeness ordering based on similar premises exists.
Keywords :
Document type :
Preprints, Working Papers, ...

Cited literature [15 references]

https://halshs.archives-ouvertes.fr/halshs-00648884
Contributor : Caroline Bauer <>
Submitted on : Tuesday, December 6, 2011 - 3:23:15 PM
Last modification on : Tuesday, January 19, 2021 - 11:08:50 AM
Long-term archiving on: : Monday, December 5, 2016 - 12:27:47 AM

### File

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• HAL Id : halshs-00648884, version 1

### Citation

Antonio Cabrales, Olivier Gossner, Roberto Serrano. Entropy and the value of information for investors. 2011. ⟨halshs-00648884⟩

Record views


text:
- Current Issue - Ahead of Print Articles - All Issues - Search - Open Access - Information for Authors - Downloads - Guideline - Regulations ㆍPaper Submission ㆍPaper Reviewing ㆍPublication and Distribution - Code of Ethics - For Authors ㆍOnlilne Submission ㆍMy Manuscript - For Reviewers - For Editors
 Three dimensional critical point of the total scalar curvature Bull. Korean Math. Soc. 2013 Vol. 50, No. 3, 867-871 https://doi.org/10.4134/BKMS.2013.50.3.867Printed May 31, 2013 Seungsu Hwang Chung-Ang University Abstract : It has been conjectured that, on a compact $3$-dimensional orientable manifold, a critical point of the total scalar curvature restricted to the space of constant scalar curvature metrics of unit volume is Einstein. In this paper we prove this conjecture under a condition that $\ker s_g'^*\neq 0$, which generalizes the previous partial results. Keywords : total scalar curvature, critical point metric, Einstein metric MSC numbers : Primary 53C25 Downloads: Full-text PDF


text:
# Why is there a delay for setting bounties? [duplicate]

This question already has an answer here:

I don't understand the reasoning behind having to wait before putting a bounty on a question. It may help in a very rare case where I ask a question and while waiting for a response, I manage to find an answer myself (but I usually look for an answer myself before asking a question) and save myself the reputation. Perhaps there is also a worry that people with lots of reputation start throwing their weight in order to get quick responses, but honestly I think this is fine (note that this is coming from a user with not much reputation) because if someone's reputation is high/increasing their net input to the site is positive, they're going to be answering more questions than they are asking questions with a bounty. So a user putting bounties on a destructively large amount of questions is very unsustainable for that user.

The reason I ask this is that I am in a particularly frustrating situation now, where I have an exam tomorrow and cannot offer a bounty for a question that would help me for that exam.

As a disclaimer, I'm not trying to say that we should change the system, if it has worked in the past, I am just trying to understand why it is the way it is. However, perhaps an "early bounty fee" of $\approx$ 20% of the bounty could be applied to bounties set before the two day period rather than not allowing it to be posted.

## marked as duplicate by Martin Sleziak, Community♦May 24 '15 at 20:23

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

## 1 Answer

Offering a bounty on a question has the side effect that close votes can no longer be cast on the question while the bounty is still active.1 Being able to set bounties immediately could create an environment where bounties are offered on off-topic or very poor questions for this express purpose. In part, the two-day delay between asking and setting a bounty is a period where the community vets the question itself.

Also, bounties should be set on questions which are in their "final" form. We often see questions which have not been asked as intended (or have simply been incorrectly transcribed from their sources). Even without the added bounty bonuses we have cases where users realise that they have submitted the wrong question after answers have been submitted. This sometimes creates an unfortunate atmosphere where the asker wants to edit their question to ask the correct question, but the answerers don't want their answers to become invalid. The delay then also allows everyone to ensure that the question being bountied is the question that was intended.

Finally, removing this delay would undoubtedly result in a dramatic increase in the number of bounties being set. The amount of extra exposure granted a question by being listing in the "featured" tab is inversely related to the number of questions with bounties. A question that would naturally be answered within 24 hours would additionally be wasting a spot in the featured tab (noting that bounties cannot be awarded within 24 hours of being offered).

1 Moderators can remove (and refund) active bounties, but this is something we do very infrequently.


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# Markdown Guide (modified)

## 2018/08/30

Categories: Example Tags: Markdown

# An h1 header

Paragraphs are separated by a blank line.

2nd paragraph. Italic, bold, and monospace. Itemized lists look like:

• this one
• that one
• the other one

Note that — not considering the asterisk — the actual text content starts at 4-columns in.

Block quotes are written like so.

They can span multiple paragraphs, if you like.

Use 3 dashes for an em-dash. Use 2 dashes for ranges (ex., “it’s all in chapters 12–14”). Three dots … will be converted to an ellipsis. Unicode is supported. ☺

## An h2 header

Here’s a numbered list:

1. first item
2. second item
3. third item

Note again how the actual text starts at 4 columns in (4 characters from the left side). Here’s a code sample:

# Let me re-iterate ...
for i in 1 .. 10 { do-something(i) }

As you probably guessed, indented 4 spaces. By the way, instead of indenting the block, you can use delimited blocks, if you like:

 1 2 3  define foobar() { print "Welcome to flavor country!"; }

(which makes copying & pasting easier). You can optionally mark the delimited block for Pandoc to syntax highlight it:

 1 2 3 4 5 6  import time # Quick, count to ten! for i in range(10): # (but not *too* quick) time.sleep(0.5) print i

### An h3 header

Now a nested list:

1. First, get these ingredients:

• carrots
• celery
• lentils
2. Boil some water.

3. Dump everything in the pot and follow this algorithm:

find wooden spoon
uncover pot
stir
cover pot
balance wooden spoon precariously on pot handle
wait 10 minutes
goto first step (or shut off burner when done)

Do not bump wooden spoon or it will fall.

Notice again how text always lines up on 4-space indents (including that last line which continues item 3 above).

Here’s a link to a website, to a local doc, and to a section heading in the current doc. Here’s a footnote 1.

Tables can look like this:

sizematerialcolor
9leatherbrown
10hemp canvasnatural
11glasstransparent

Table: Shoes, their sizes, and what they’re made of

(The above is the caption for the table.)

A horizontal rule follows.

Here’s a definition list:

apples
Good for making applesauce.
oranges
Citrus!
tomatoes
There’s no “e” in tomatoe.

(Put a blank line between each term/definition pair to spread things out more.)

and images can be specified like so:

Inline math equations go in like so: $$\omega = d\phi / dt$$. Display math should get its own line and be put in in double-dollarsigns:

$$I = \int \rho R^{2} dV$$

And note that you can backslash-escape any punctuation characters which you wish to be displayed literally, ex.: foo, *bar*, etc.

#### Images auto center:

1. Footnote text goes here. ↩


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# Why won't Maple graph this function?

## Main Question or Discussion Point

> f:=(x+(3*y)-1)*exp^(-(x^2(-(y^2));
> plot3d(f,x=-3..3,y=-3..3);

After this, Maple says it is initializing a plot and then I get a big blank space.

I'm also trying to find the contours, but when I type:

> contourplot(f,x=-3..3,y=-3..3,contours=5);

Maple just gives: contourplot(f,x=-3..3,y=-3..3,contours=5)

How can I fix these two things???

## Answers and Replies

Related MATLAB, Maple, Mathematica, LaTeX News on Phys.org
exp^ doesn't make any sense. Do you want

$e^{-x^2-y^2} \text{ or } e^{x^2 y^2}$?

if you want the first write
exp(-x^2-y^2);
if you want the second (which is more-or-less what you currently have in your expression) write
exp(x^2*y^2)

Edit: also your bracketing is very much off in your exponential function

Last edited:
cristo
Staff Emeritus


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## Intermediate Algebra (12th Edition)

$4y^2-9z^2+6xz-x^2$
Use special products to multiply the given expression, $[2y+(3z-x)][2y-(3z-x)] .$ Using $(a+b)(a-b)=a^2-b^2$ or the product of the sum and difference of like terms, the product of the expression above is \begin{array}{l}\require{cancel} (2y)^2-(3z-x)^2 \\\\= 4y^2-(3z-x)^2 .\end{array} Using $(a+b)^2=a^2+2ab+b^2$ or the square of a binomial, the product of the expression above is \begin{array}{l}\require{cancel} 4y^2-[(3z)^2+2(3z)(-x)+(-x)^2] \\\\= 4y^2-[9z^2-6xz+x^2] \\\\= 4y^2-9z^2+6xz-x^2 .\end{array}


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Browse Questions

# True or False: The equation of aline,which is parallel to $2\hat i\;-\hat j\;+\hat 3k$ and which passes through the point (5,-2,4) is $\Large \frac{x-5}{2}\;=\frac{y-2}{-1}\;=\frac{z-4}{3}.$

$\begin{array}{1 1}True \\ False \end{array}$

Toolbox:
• Cartesian equation of a line passing through a point and parallel to a given vector is $\large\frac{x-x_1}{l}=\frac{y-y_1}{m}=\frac{z-z_1}{n}$
Let the vector which is parallel to the given line be $\overrightarrow b=2 \hat i+\hat j+ 3\hat k$
Let the position vector $\overrightarrow a=5 \hat i-2\hat j+ 4\hat k$
Hence Cartesian equation of a line passing through a point and parallel to a given vector is
$\large\frac{x-x_1}{l}=\frac{y-y_1}{m}=\frac{z-z_1}{n}$
Hence $(x_1,y_1,z_1)$ are $(5,-2,4)$ and $(l,m,n)$ are $(2,+1,3)$
Therefore The equation of the line is
$\large\frac{x-5}{2}=\frac{y+2}{-1}=\frac{z-4}{3}$
Hence it is a $False$ statement


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Get our free extension to see links to code for papers anywhere online!

##### Heteroscedastic Bandits with Reneging
Oct 31, 2018
Ping-Chun Hsieh, Xi Liu, Anirban Bhattacharya, P. R. Kumar

Although shown to be useful in many areas as models for solving sequential decision problems with side observations (contexts), contextual bandits are subject to two major limitations. First, they neglect user "reneging" that occurs in real-world applications. That is, users unsatisfied with an interaction quit future interactions forever. Second, they assume that the reward distribution is homoscedastic, which is often invalidated by real-world datasets, e.g., datasets from finance. We propose a novel model of "heteroscedastic contextual bandits with reneging" to overcome the two limitations. Our model allows each user to have a distinct "acceptance level," with any interaction falling short of that level resulting in that user reneging. It also allows the variance to be a function of context. We develop a UCB-type of policy, called HR-UCB, and prove that with high probability it achieves $\mathcal{O}\Big(\sqrt{{T}}\big(\log({T})\big)^{3/2}\Big)$ regret.

Share this with someone who'll enjoy it:

Access Paper Source

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# Formants and their extraction

N.B. I wrote this article in the process of participating in Project Spectra. We originally envisioned including resonance-related exercises at the time, but due to limitations on our access to professional speech therapist input, knowledge, and implementation we only managed to finish pitch-based exercises.

# What are formants?

A formant is a concentration of acoustic energy around a particular frequency in the speech wave. There are several formants, each at a different frequency, roughly one in each 1000Hz band for average men. The corresponding range for average women is one formant every 1100Hz. The true range depends on the actual length of the vocal tract. Each formant corresponds to a resonance mode of the vocal tract.

Seen this way, the sound spectra look like mountain landscapes and the formants appear as peaks, a metaphor that is often used for formants. [12]

The frequency of the first formant is mostly determined by the height of the tongue body:

high F1 = low vowel (i.e., high frequency F1 = low tongue body)
low F1 = high vowel (i.e., low frequency F1 = high tongue body)

The frequency of the second formant is mostly determined by the frontness/backness of the tongue body:

high F2 = front vowel
low F2 = back vowel

https://web.archive.org/web/20190213064736/https://home.cc.umanitoba.ca/~krussll/phonetics/acoustic/formants.html

F3: The lower of the formant frequency, the rounder shape of the lip e.g. /U/, /uù/, but F3 is not as frequently used as F1 and F2.

Since the 1950s, and even before, attempts have been made to visualize the vowel space by plotting at least F1 and F2 after collecting large corpuses of data. (Keywords to search for: vowel chart, vowel diagram) One such corpus with 1520 samples of American English[1] was collected by Peterson & Barney in 1952. This particular dataset can be found in various open source libraries such as Praat (http://web.archive.org/web/20190831081419/https://raw.githubusercontent.com/praat/praat/master/dwtools/Table_extensions.cpp) or packages in CRAN.

…, men, women, and children have vocal tracts of markedly different sizes, so that naturally their formants are different. Yet we identify a child’s vowels correctly in spite of this. An /i/ said by a man and an /i/ said by a woman are felt to be “the same sound” and are equated, as far as phonetic quality goes, by the phonetician. On the usual F1/F2 plot they have quite different positions, but on an “articulatory” vowel-diagram they have the same position. Peterson has suggested that a more realistic acoustic diagram is achieved by plotting the ratio of F1 to F3 along the vertical axis and the ratio of F2 to F3 along the horizontal axis, all values being expressed in mels. Then men’s, women’s and children’s “same” vowels are claimed to come out with approximately the same positions.[2]

# Hosting a static site quickly as a Tor hidden service with docker-compose

This sample bakes a private key into the resulting docker image that contains the Tor daemon. The only thing you need to edit are args and volumes in docker-compose.yml.

docker-compose.yml:

ONION_PRIVATE_KEY is what belongs in /var/lib/tor/hidden_service/private_key, ONION_HOSTNAME is what belongs in /var/lib/tor/hidden_service/hostname.

Dockerfile.hidden_service

Dockerfile.web_host

Copy these three into a folder, then do docker-compose up from within said folder.

# nginx proxy_pass based on domain

Nginx supports multiple server blocks listening on the same port; this is how Virtual Hosts work; thus we simply proxy_pass virtual hosts to our desired target.

https://stackoverflow.com/questions/21064401/route-different-proxy-based-on-subdomain-request-in-nginx

# Moving House

Previously I had this blog hosted on RedHat’s OpenShift PaaS using WordPress. I haven’t been blogging frequently for about 2 years, and I missed RedHat’s memo about the migration because I registered using an obscure email from a shell account without webmail. https://blog.openshift.com/migrate-to-v3-v2-eol/ Lo and behold my blog has vanished, although thankfully I have the entire SQL dump (and most of the crucial media) from the beginning of this year. To minimize the chance of this happening ever again (and to minimize the effort of getting my site up and running again, knock on wood) SSGs seem like the best solution since they have the content in a portable, versionable format, although I would have preferred a Ghost blog.

Hexo caught my eye over other static site generators due to:

• Complete compatibility with Octopress plugins
• hexo server -d watches the filesystem and automatically generates new content upon reload
• Prebuilt themes like the one I’m using now have the basics of what a nerdy blog needs OOTB:
• $\textbf{MathJax}$
• Instant support with an npm install hexo-tag-fontawesome
• SEO basics like a configurable sitemap and newfangled generator plugins for stuff like Google AMP which will close the gap between CMSes
• One line deploy to Git, (S)FTP, among other targets

# nVidia CUDA samples on Ubuntu 16.04 LTS

Here they are in case anyone else needs to download them separately (and the rest of cuda-repo-ubuntu1504-7-5-local_7.5-18_amd64.deb):

The file you’re looking for is var/cuda-repo-7-5-local/cuda-samples-7-5_7.5-18_amd64.deb

To extract and compile the samples (make sure you have your nVidia GPU active if you’re using Optimus, e.g. by using

sudo prime-switch nvidia

or otherwise;

nvidia-smi

# First Foray into MIPS Assembly

Task: Print Hello World 10 times.

# Concatenating FLV files with ffmpeg

Defining the combination formula (nCr) recursively.

This works because http://www.cs.nott.ac.uk/~vxc/g51mcs/ch05_combinatorics.pdf , page 9.

# How to fix popping on audio start/stop/resume with Intel HDA audio in Linux

https://wiki.archlinux.org/index.php/Alsa#Pops_when_starting_and_stopping_playback My ears were nearly wrecked by this awfulness. On a side note, the Conexant Audio CX20751/2 isn’t the best integrated sound card around. Even lowly Realteks have far better dynamic range and equalization. There is virtually no soundstage, mids are very muffled, even with headphones. It can be found on some lower end Thinkpads (e.g. S440/E440); considering that these are cheap SMB laptops it’s not surprising that they had to cut corners somewhere.

# Writing everything on one line in the Python REPL

Formants Linguistics Linux Meta android file gnu


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# PDE and applications

• Date:
• Location: Ångströmlaboratoriet, Lägerhyddsvägen 1 64119
• Lecturer: Andrzej Szulkin
• Contact person: Kaj Nyström

Title: A Sobolev-type inequality for the curl operator and ground states for the curl-curl equation with critical Sobolev exponent

The seminar will take place at Ångström Laboratory, but it will also be possible to attend on Zoom.

Abstract: Let $\Omega$ be a domain in $\mathbb{R}^3$ and let
$S(\Omega) := \inf\{\|\nabla u\|_{L^2(\Omega)}^2/\|u\|_{L^6(\Omega)}^2: u\in C_0^\infty(\Omega)\setminus \{0\}\}$
be the Sobolev constant with respect to the embedding $\mathcal{D}^{1,2}_0(\Omega)\hookrightarrow L^6(\Omega)$. As
is well known, $S(\Omega)$ is independent of $\Omega$, it is attained if and only if $\Omega=\mathbb{R}^3$ and
the infimum is taken by  ground state solutions for the equation $-\Delta u = |u|^4u$ in
$\mathcal{D}^{1,2}(\mathbb{R}^3)$ (the Aubin-Talenti instantons).

In this talk we will be concerned with the curl operator $\nabla\times \cdot$. After discussing the physical background we
define a Sobolev-type constant, $S_{\text{curl}}(\Omega)$, as a certain infimum. As we shall see, it is not possible to
simply replace $\|\nabla u\|_{L^2(\Omega)}$ by $\|\nabla\times u\|_{L^2(\Omega)}$ in the definition above.
$S_{\text{curl}}$ has the following properties: $S_{\text{curl}}(\Omega)> S(\Omega)$; $S_{\text{curl}}(\Omega)$ is
independent of $\Omega$; the infimum is attained when $\Omega=\mathbb{R}^3$ and is taken by a ground state
solution to the equation $\nabla\times(\nabla\times u) = |u|^4u$ (which is related to Maxwell's equations).

This is joint work with Jaroslaw Mederski (Institute of Mathematics of the Polish Academy of Sciences).