/*- * Copyright (c) 1980 The Regents of the University of California. * All rights reserved. * * This module is believed to contain source code proprietary to AT&T. * Use and redistribution is subject to the Berkeley Software License * Agreement and your Software Agreement with AT&T (Western Electric). */ #ifndef lint static char sccsid[] = "@(#)c_sin.c 5.2 (Berkeley) 4/12/91"; #endif /* not lint */ #include "complex" c_sin(r, z) complex *r, *z; { double sin(), cos(), sinh(), cosh(); r->real = sin(z->real) * cosh(z->imag); r->imag = cos(z->real) * sinh(z->imag); }