newlib/winsup/mingw/mingwex/complex/csin.c
Danny Smith 3c7a7a5fca Add ISO C99 complex support for doubles.
* include/complex.h: New file.
	* mingwex/complex: New directory.
	* mingwex/complex/cabs.c: New file.
	* mingwex/complex/cacos.c: New file.
	* mingwex/complex/cacosh.c: New file.
	* mingwex/complex/casin.c: New file.
	* mingwex/complex/casinh.c: New file.
	* mingwex/complex/catan.c: New file.
	* mingwex/complex/catanh.c: New file.
	* mingwex/complex/ccos.c: New file.
	* mingwex/complex/ccosh.c: New file.
	* mingwex/complex/cexp.c: New file.
	* mingwex/complex/cimag.c: New file.
	* mingwex/complex/clog.c: New file.
	* mingwex/complex/cpow.c: New file.
	* mingwex/complex/cproj.c: New file.
	* mingwex/complex/creal.c: New file.
	* mingwex/complex/csin.c: New file.
	* mingwex/complex/csinh.c: New file.
	* mingwex/complex/csqrt.c: New file.
	* mingwex/complex/ctan.c: New file.
	* mingwex/complex/ctanh.c: New file.
	* mingwex/Makefile.in (COMPLEX_DISTFILES): New list of
	files.
	(dist): Use it.
	(COMPLEX_OBJS): New list of objects.
	(LIB_OBJS): Include it in the library.
2003-10-21 09:43:22 +00:00

22 lines
375 B
C

/* csin.c */
/*
Contributed by Danny Smith
2003-10-20
*/
#include <math.h>
#include <complex.h>
/* csin (x + I * y) = sin (x) * cosh (y)
+ I * (cos (x) * sinh (y)) */
double complex csin (double complex Z)
{
double complex Res;
__real__ Res = sin (__real__ Z) * cosh ( __imag__ Z);
__imag__ Res = cos (__real__ Z) * sinh ( __imag__ Z);
return Res;
}