casinh.c revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8
125c28e8Piotr Jasiukajtis/*
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2125c28e8Piotr Jasiukajtis
2225c28e8Piotr Jasiukajtis/*
2325c28e8Piotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
2425c28e8Piotr Jasiukajtis */
2525c28e8Piotr Jasiukajtis/*
2625c28e8Piotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
2725c28e8Piotr Jasiukajtis * Use is subject to license terms.
2825c28e8Piotr Jasiukajtis */
2925c28e8Piotr Jasiukajtis
3025c28e8Piotr Jasiukajtis#pragma weak casinh = __casinh
3125c28e8Piotr Jasiukajtis
3225c28e8Piotr Jasiukajtis/* INDENT OFF */
3325c28e8Piotr Jasiukajtis/*
3425c28e8Piotr Jasiukajtis * dcomplex casinh(dcomplex z);
3525c28e8Piotr Jasiukajtis * casinh z = -i casin iz .
3625c28e8Piotr Jasiukajtis */
3725c28e8Piotr Jasiukajtis/* INDENT ON */
3825c28e8Piotr Jasiukajtis
3925c28e8Piotr Jasiukajtis#include "libm.h"
4025c28e8Piotr Jasiukajtis#include "complex_wrapper.h"
4125c28e8Piotr Jasiukajtis
4225c28e8Piotr Jasiukajtisdcomplex
4325c28e8Piotr Jasiukajtiscasinh(dcomplex z) {
4425c28e8Piotr Jasiukajtis	dcomplex w, r, ans;
4525c28e8Piotr Jasiukajtis
4625c28e8Piotr Jasiukajtis	D_RE(w) = -D_IM(z);
4725c28e8Piotr Jasiukajtis	D_IM(w) = D_RE(z);
4825c28e8Piotr Jasiukajtis	r = casin(w);
4925c28e8Piotr Jasiukajtis	D_RE(ans) = D_IM(r);
5025c28e8Piotr Jasiukajtis	D_IM(ans) = -D_RE(r);
5125c28e8Piotr Jasiukajtis	return (ans);
5225c28e8Piotr Jasiukajtis}