125c28e83SPiotr Jasiukajtis /* 225c28e83SPiotr Jasiukajtis * CDDL HEADER START 325c28e83SPiotr Jasiukajtis * 425c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 525c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 625c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 725c28e83SPiotr Jasiukajtis * 825c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 925c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 1025c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 1125c28e83SPiotr Jasiukajtis * and limitations under the License. 1225c28e83SPiotr Jasiukajtis * 1325c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 1425c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1525c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 1625c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 1725c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 1825c28e83SPiotr Jasiukajtis * 1925c28e83SPiotr Jasiukajtis * CDDL HEADER END 2025c28e83SPiotr Jasiukajtis */ 2125c28e83SPiotr Jasiukajtis 2225c28e83SPiotr Jasiukajtis /* 2325c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2425c28e83SPiotr Jasiukajtis */ 2525c28e83SPiotr Jasiukajtis /* 2625c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 2725c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2825c28e83SPiotr Jasiukajtis */ 2925c28e83SPiotr Jasiukajtis 30*ddc0e0b5SRichard Lowe #pragma weak __catanh = catanh 3125c28e83SPiotr Jasiukajtis 3225c28e83SPiotr Jasiukajtis /* INDENT OFF */ 3325c28e83SPiotr Jasiukajtis /* 3425c28e83SPiotr Jasiukajtis * z := x + iy 3525c28e83SPiotr Jasiukajtis * catanh(z) = -i catan(iz) 3625c28e83SPiotr Jasiukajtis * = -i catan(-y+ix) 3725c28e83SPiotr Jasiukajtis * = (Im(catan(-y+ix)), -Re(catan(-y+ix))) 3825c28e83SPiotr Jasiukajtis */ 3925c28e83SPiotr Jasiukajtis /* INDENT ON */ 4025c28e83SPiotr Jasiukajtis 4125c28e83SPiotr Jasiukajtis #include "libm.h" 4225c28e83SPiotr Jasiukajtis #include "complex_wrapper.h" 4325c28e83SPiotr Jasiukajtis 4425c28e83SPiotr Jasiukajtis dcomplex 4525c28e83SPiotr Jasiukajtis catanh(dcomplex z) { 4625c28e83SPiotr Jasiukajtis double x, y; 4725c28e83SPiotr Jasiukajtis dcomplex ans, ct; 4825c28e83SPiotr Jasiukajtis 4925c28e83SPiotr Jasiukajtis x = D_RE(z); 5025c28e83SPiotr Jasiukajtis y = D_IM(z); 5125c28e83SPiotr Jasiukajtis D_RE(z) = -y; 5225c28e83SPiotr Jasiukajtis D_IM(z) = x; 5325c28e83SPiotr Jasiukajtis ct = catan(z); 5425c28e83SPiotr Jasiukajtis D_RE(ans) = D_IM(ct); 5525c28e83SPiotr Jasiukajtis D_IM(ans) = -D_RE(ct); 5625c28e83SPiotr Jasiukajtis return (ans); 5725c28e83SPiotr Jasiukajtis } 58