conj, conjf, conjl - calculate the complex conjugate
#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))