cexp man page

cexp, cexpf, cexpl — complex exponential function


#include <complex.h>

double complex cexp(double complex z);
float complex cexpf(float complex z);
long double complex cexpl(long double complex z);

Link with -lm.


These functions calculate e (2.71828..., the base of natural logarithms) raised to the power of z.

One has:

cexp(I * z) = ccos(z) + I * csin(z)


These functions first appeared in glibc in version 2.1.


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

cexp(), cexpf(), cexpl()Thread safetyMT-Safe

Conforming to

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

See Also

cabs(3), cexp2(3), clog(3), cpow(3), complex(7)

Referenced By

cexp2(3), clog(3), clog10(3), clog2(3), complex(7), csqrt(3), exp(3).

Explore man page connections for cexp(3).

cexpf(3) and cexpl(3) are aliases of cexp(3).