csqrt(3)                                              Library Functions Manual                                             csqrt(3)

NAME
       csqrt, csqrtf, csqrtl - complex square root

LIBRARY
       Math library (libm, -lm)

SYNOPSIS
       #include <complex.h>

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

DESCRIPTION
       These  functions  calculate  the complex square root of z, with a branch cut along the negative real axis.  (That means that
       csqrt(-1+eps*I) will be close to I while csqrt(-1-eps*I) will be close to -I, if eps is a small positive real number.)

VERSIONS
       These functions were added in glibc 2.1.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       ┌─────────────────────────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │Interface                                                                                        │ Attribute     │ Value   │
       ├─────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │csqrt(), csqrtf(), csqrtl()                                                                      │ Thread safety │ MT-Safe │
       └─────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘

STANDARDS
       C99, POSIX.1-2001, POSIX.1-2008.

SEE ALSO
       cabs(3), cexp(3), complex(7)

Linux man-pages 6.03                                         2022-12-15                                                    csqrt(3)