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HP-UX Reference > C
csin(3M)HP Integrity Server OnlyHP-UX 11i Version 3: February 2007 |
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NAMEcsin(), csinf(), csinl(), csinw(), csinq() — complex sine functions SYNOPSIS#include <complex.h> double complex csin(double complex z); float complex csinf(float complex z); long double complex csinl(long double complex z); extended complex csinw(extended complex z); quad complex csinq(quad complex z); DESCRIPTIONThese functions are available only for Integrity servers. csin() returns the complex sine of z. csinf() is a float complex version of csin(); it takes a float complex argument and returns a float complex result. csinl() is a long double complex version of csin(); it takes a long double complex argument and returns a long double complex result. csinw() is an extended complex version of csin(); it takes an extended complex argument and returns an extended complex result. csinq() is equivalent to csinl() on HP-UX systems. USAGETo use these functions, compile with the default -Ae option. To use csinw() or csinq(), 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 VALUEcsin(conj(z)) = conj(csin(z)) and csin is odd. csin(+0+i0) returns +0+i0. csin(+Inf+i0) returns NaN±i0 (where the sign of the imaginary part of the result is unspecified) and raises the invalid floating-point exception. csin(+NaN+i0) returns NaN±i0 (where the sign of the imaginary part of the result is unspecified). csin(Inf+iy) returns NaN+iNaN and raises the invalid floating-point exception, for positive finite y. csin(NaN+iy) returns NaN+iNaN and optionally raises the invalid floating-point exception, for finite nonzero y. csin(+0+iInf) returns +0+iInf. csin(+x+iInf) returns +Inf(sin(y)+icos(y)), for positive finite x. csin(+Inf+iInf) returns NaN±iInf (where the sign of the imaginary part of the result is unspecified) and raises the invalid floating-point exception. csin(+NaN+iInf) returns +NaN±iInf (where the sign of the imaginary part of the result is unspecified). csin(0+iNaN) returns 0+iNaN. csin(x+iNaN) returns NaN+iNaN and optionally raises the invalid floating-point exception, for all nonzero numbers x. csin(NaN+iNaN) returns NaN+iNaN. |
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