1*3eec8f7eSnjoly.\" $NetBSD: cacosh.3,v 1.4 2013/03/14 19:15:34 njoly Exp $ 2c7a43da6Sdrochner.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 3c773c2f5Smatt.Dd January 29, 2013 4a9230a7bSwiz.Dt CACOSH 3 5a9230a7bSwiz.Os 6a9230a7bSwiz.Sh NAME 7a9230a7bSwiz.Nm cacosh , 8c773c2f5Smatt.Nm cacoshf , 9c773c2f5Smatt.Nm cacoshl 10a9230a7bSwiz.Nd complex arc hyperbolic cosine functions 11a9230a7bSwiz.Sh SYNOPSIS 12a9230a7bSwiz.In complex.h 13a9230a7bSwiz.Ft double complex 14a9230a7bSwiz.Fn cacosh "double complex z" 15a9230a7bSwiz.Ft float complex 16a9230a7bSwiz.Fn cacoshf "float complex z" 17c773c2f5Smatt.Ft long double complex 18c773c2f5Smatt.Fn cacoshl "long double complex z" 19a9230a7bSwiz.Sh DESCRIPTION 20c7a43da6SdrochnerThese functions compute the complex arc hyperbolic cosine of 21a9230a7bSwiz.Ar z , 22a9230a7bSwizwith a branch cut at values less than 1 along the real axis. 23a9230a7bSwiz.Sh RETURN VALUES 24c7a43da6SdrochnerThese functions return the complex arc hyperbolic cosine value, 25c7a43da6Sdrochnerin the range of a half-strip of non-negative values along 26a9230a7bSwizthe real axis and in the interval [\-i pi,\ +i pi] along 27c7a43da6Sdrochnerthe imaginary axis. 28a9230a7bSwiz.Sh ERRORS 29c7a43da6SdrochnerNo errors are defined. 30a9230a7bSwiz.Sh SEE ALSO 31a9230a7bSwiz.Xr ccosh 3 , 32a9230a7bSwiz.St -p1003.1-2001 33a9230a7bSwiz.Aq Pa complex.h 34a9230a7bSwiz.Sh COPYRIGHT 35c7a43da6SdrochnerPortions of this text are reprinted and reproduced in electronic form 36c7a43da6Sdrochnerfrom IEEE Std 1003.1, 2003 Edition, Standard for Information Technology 37c7a43da6Sdrochner-- Portable Operating System Interface (POSIX), The Open Group Base 38c7a43da6SdrochnerSpecifications Issue 6, Copyright (C) 2001-2003 by the Institute of 39a9230a7bSwizElectrical and Electronics Engineers, Inc and The Open Group. 40a9230a7bSwizIn the 41c7a43da6Sdrochnerevent of any discrepancy between this version and the original IEEE and 42c7a43da6SdrochnerThe Open Group Standard, the original IEEE and The Open Group Standard 43a9230a7bSwizis the referee document. 44a9230a7bSwizThe original Standard can be obtained online at 45c7a43da6Sdrochnerhttp://www.opengroup.org/unix/online.html . 46