cexp(3) BSD Library Functions Manual cexp(3)
NAME
cexp -- complex exponential function
SYNOPSIS
#include <complex.h>
double complex
cexp(double complex z);
long double complex
cexpl(long double complex z);
float complex
cexpf(float complex z);
DESCRIPTION
cexp(z) returns the complex exponential of z.
cexp(conj(z)) = conj(cexp(z)), for all complex floating-point numbers z.
SPECIAL VALUES
The conjugate symmetry of cexp() is used to abbreviate the specification
of special values.
cexp(+-0 + 0i) returns 1 + 0i.
cexp(x + inf i) returns NaN + NaN i, and raises the invalid flag, for
finite x.
cexp(x + NaN i) returns NaN + NaN i, for finite x.
cexp(inf + 0i) returns inf + 0i.
For the following two cases, cis(y) denotes cos(y) + I*sin(y).
cexp(-inf + yi) returns 0*cis(y), for finite y.
cexp(inf + yi) returns inf*cis(y), for finite nonzero y.
cexp(-inf + inf i) returns -0 + 0i.
cexp(inf + inf i) returns -inf + NaN i, and raises the invalid flag.
cexp(-inf + NaN i) returns -0 + 0i.
cexp(inf + NaN i) returns -inf + NaN i.
cexp(NaN + 0i) returns NaN + 0i.
cexp(NaN + yi) returns NaN + NaN i for all nonzero numbers y.
cexp(NaN + NaN i) returns NaN + NaN i.
SEE ALSO
exp(3) clog(3) complex(3)
STANDARDS
The cexp() function conforms to ISO/IEC 9899:1999(E).
4th Berkeley Distribution December 11, 2006 4th Berkeley Distribution
Mac OS X 10.6 - Generated Thu Sep 17 20:18:45 CDT 2009