CSQRT(3) Library Functions Manual CSQRT(3)

csqrt csqrtf csqrtl — complex square root functions

#include <complex.h>

double complex csqrt(double complex z);
float complex csqrtf(float complex z);
long double complex csqrtl(long double complex z);

The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 (“POSIX.1”) defers to the ISO C standard.

These functions shall compute the complex square root of , with a branch cut along the negative real axis.

These functions shall return the complex square root value, in the range of the right half-plane (including the imaginary axis).

No errors are defined.

None.

None.

None.

None.

cabs(3), cpow(3), the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <complex.h>

First released in Issue 6. Derived from the ISO/IEC 9899:1999 (“ISO C99”) standard.

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January 1, 2004 posix.fail