NAME

conj, conjf, conjl - calculate the complex conjugate

LIBRARY

Math library (libm, -lm)

#include <complex.h>

double complex conj(double complex z);
float complex conjf(float complex z);
long double complex conjl(long double complex z);

These functions return the complex conjugate value of z. That is the value obtained by changing the sign of the imaginary part.

One has:

cabs(z) = csqrt(z * conj(z))

These functions were added in glibc 2.1.

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

Interface	Attribute	Value
conj (), conjf (), conjl ()	Thread safety	MT-Safe

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