17 lines
285 B
C
17 lines
285 B
C
#ifndef lint
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static char sccsid[] = "@(#)z_cos.c 1.1 92/07/30 SMI"; /* from UCB 1.1" */
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#endif
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/*
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*/
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#include "complex.h"
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z_cos(r, z)
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dcomplex *r, *z;
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{
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double sin(), cos(), sinh(), cosh();
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r->dreal = cos(z->dreal) * cosh(z->dimag);
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r->dimag = - sin(z->dreal) * sinh(z->dimag);
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}
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