cimag(3) Library Functions Manual cimag(3) NAME cimag, cimagf, cimagl - get imaginary part of a complex number LIBRARY Math library (libm, -lm) SYNOPSIS #include <complex.h> double cimag(double complex z); float cimagf(float complex z); long double cimagl(long double complex z); DESCRIPTION These functions return the imaginary part of the complex number z. One has: z = creal(z) + I * cimag(z) 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 │ ├─────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤ │cimag(), cimagf(), cimagl() │ Thread safety │ MT-Safe │ └─────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘ STANDARDS C99, POSIX.1-2001, POSIX.1-2008. NOTES gcc also supports __imag__. That is a GNU extension. SEE ALSO cabs(3), creal(3), complex(7) Linux man-pages 6.03 2022-12-15 cimag(3)