cpow(), cpowf(), cpowl()

Raise a complex number to the power of another complex number

Synopsis:

#include <complex.h>

double complex cpow( double complex x,
                     double complex y );

float complex cpowf( float complex x,
                     float complex y );

long double complex cpowl( long double complex x,
                           long double complex y );

Arguments:

x
The number you want to raise.
y
The power you want to raise the number to.

Library:

libm
The general-purpose math library.
libm-sve
(QNX Neutrino 7.1 or later) A library that optimizes the code for ARMv8.2 chips that have Scalable Vector Extension hardware.

Your system requirements will determine how you should work with these libraries:

Note: Compile your program with the -fno-builtin option to prevent the compiler from using a built-in version of the function.

Description:

These functions compute the complex power function, xy, with a branch cut for the first parameter along the negative real axis.

To check for error situations, use feclearexcept() and fetestexcept(). For example:

Returns:

The complex power, xy. Errors and special cases are handled as if the operation were implemented as cexp(y * clog(x)).

These functions raise FE_INEXACT if the FPU reports that the result can't be exactly represented as a floating-point number.

Classification:

C11, POSIX 1003.1

Safety:  
Cancellation point No
Interrupt handler Yes
Signal handler Yes
Thread Yes