public NumericIndicator sqrt() {
        return NumericIndicator.of(UnaryOperation.sqrt(this));
    }
@Test
    public void sqrt() {
        final NumericIndicator numericIndicator = NumericIndicator.of(cp1);
        final NumericIndicator dynamicOp = numericIndicator.sqrt();
        assertNumEquals(1, dynamicOp.getValue(0));
        assertNumEquals(Math.sqrt(2.0), dynamicOp.getValue(1));
        assertNumEquals(3, dynamicOp.getValue(8));
    }