/*- * Copyright (c) 1980 The Regents of the University of California. * All rights reserved. * * %sccs.include.proprietary.c% */ #ifndef lint static char sccsid[] = "@(#)z_sin.c 5.2 (Berkeley) 04/12/91"; #endif /* not lint */ #include "complex" z_sin(r, z) dcomplex *r, *z; { double sin(), cos(), sinh(), cosh(); r->dreal = sin(z->dreal) * cosh(z->dimag); r->dimag = cos(z->dreal) * sinh(z->dimag); }