pow()

static double xtd::math::pow ( double  x, double  y  )

static

Returns a specified number raised to the specified power.

Parameters

x	A double-precision floating-point number to be raised to a power.
y	A double-precision floating-point number that specifies a power.

Returns

The number x raised to the power y.

Remarks

The following table indicates the return value when various values or ranges of values are specified for the x and y parameters. For more information, see Double::math::positive_infinity, Double::math::negative_infinity, and Double::NaN.

Parameters	Return value
x or y = math::NaN.	math::NaN
x = Any value except math::NaN; y = 0.	1
x = math::negative_infinity; y < 0.	0
x = math::negative_infinity; y is positive odd integer.	math::negative_infinity
x = math::negative_infinity; y is positive but not an odd integer.	math::positive_infinity
x < 0 but not math::negative_infinity; y is not an integer, math::negative_infinity, or math::positive_infinity.	math::NaN
x = -1; y = math::negative_infinity or math::positive_infinity.	math::NaN
-1 < x < 1; y = math::negative_infinity.	math::positive_infinity
-1 < x < 1; y = math::positive_infinity.	0
x < -1 or x > 1; y = math::negative_infinity.	0
x < -1 or x > 1; y = math::positive_infinity.	math::positive_infinity
x = 0; y < 0.	math::positive_infinity
x = 0; y > 0.	0
x = 1; y is any value except math::NaN.	1
x = math::positive_infinity; y < 0	0
x = math::positive_infinity; y > 0.	math::positive_infinity