CIMAG(3) Library Functions Manual CIMAG(3)

cimag, cimagf, cimagl
complex imaginary functions

#include <complex.h>

double
cimag(double complex z);

float
cimagf(float complex z);

long double
cimagl(long double complex z);

These functions compute the imaginary part of z.

These functions return the imaginary part value (as a real).

No errors are defined.

For a variable z of complex type:
z = creal(z) + cimag(z)*I

carg(3), conj(3), cproj(3), creal(3), IEEE Std 1003.1-2001 (“POSIX.1”)complex.h

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .
December 27, 2012 NetBSD 9.2