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HP-UX Reference > C
cexp(3M)HP Integrity Server OnlyHP-UX 11i Version 3: February 2007 |
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NAMEcexp(), cexpf(), cexpl(), cexpw(), cexpq() — complex exponential functions SYNOPSIS#include <complex.h> double complex cexp(double complex z); float complex cexpf(float complex z); long double complex cexpl(long double complex z); extended complex cexpw(extended complex z); quad complex cexpq(quad complex z); DESCRIPTIONThese functions are available only for Integrity servers. cexp() returns the complex base-e exponential of z. cexpf() is a float complex version of cexp(); it takes a float complex argument and returns a float complex result. cexpl() is a long double complex version of cexp(); it takes a long double complex argument and returns a long double complex result. cexpw() is an extended complex version of cexp(); it takes an extended complex argument and returns an extended complex result. cexpq() is equivalent to cexpl() on HP-UX systems. USAGETo use these functions, compile with the default -Ae option. To use cexpw() or cexpq(), compile with the -fpwidetypes option. Make sure your program includes <complex.h>. Link in the math library by specifying -lm on the compiler or linker command line. RETURN VALUEcexp(conj(z)) = conj(cexp(z)). cexp(±0+i0) returns 1+i0. cexp(x+iInf) returns NaN+iNaN and raises the invalid floating-point exception, for finite x. cexp(x+iNaN) returns NaN+iNaN and optionally raises the invalid floating-point exception, for finite x. cexp(+Inf+i0) returns +Inf+i0. cexp(-Inf+iy) returns +0(cos(y)+isin (y)), for finite y. cexp(+Inf+iy) returns +Inf(cos(y)+isin (y)), for finite nonzero y. cexp(-Inf+iInf) returns ±0±i0 (where the signs of the real and imaginary parts of the result are unspecified). cexp(+Inf+iInf) returns ±Inf+iNaN and raises the invalid floating-point exception (where the sign of the real part of the result is unspecified). cexp(-Inf+iNaN) returns ±0±i0 (where the signs of the real and imaginary parts of the result are unspecified). cexp(+Inf+iNaN) returns ±Inf+iNaN (where the sign of the real part of the result is unspecified). cexp(NaN+i0) returns NaN+i0. cexp(NaN+iy) returns NaN+iNaN and optionally raises the invalid floating-point exception, for all non-zero numbers y. cexp(NaN+iNaN) returns NaN+iNaN. |
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