private static boolean
	equals(final double a, final double b, final double delta) {
		return abs(a - b) <= delta;
	}
Return {@code true} if the given value can be treated as probability
<em>one</em>.

@since 7.2

@param value the probability value to test
@return {@code true} if the given value can be treated as probability 1
jenetics/src/main/java/io/jenetics/internal/math/Probabilities.java