1*84d9c625SLionel Sambuc.\" $NetBSD: clog.3,v 1.3 2013/01/29 02:05:09 matt Exp $ 22fe8fb19SBen Gras.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 3*84d9c625SLionel Sambuc.Dd January 29, 2013 4*84d9c625SLionel Sambuc.Dt CLOG 3 5*84d9c625SLionel Sambuc.Os 6*84d9c625SLionel Sambuc.Sh NAME 7*84d9c625SLionel Sambuc.Nm clog , 8*84d9c625SLionel Sambuc.Nm clogf , 9*84d9c625SLionel Sambuc.Nm clogl 10*84d9c625SLionel Sambuc.Nd complex natural logarithm functions 11*84d9c625SLionel Sambuc.Sh SYNOPSIS 12*84d9c625SLionel Sambuc.In complex.h 13*84d9c625SLionel Sambuc.Ft double complex 14*84d9c625SLionel Sambuc.Fn clog "double complex z" 15*84d9c625SLionel Sambuc.Ft float complex 16*84d9c625SLionel Sambuc.Fn clogf "float complex z" 17*84d9c625SLionel Sambuc.Ft long double complex 18*84d9c625SLionel Sambuc.Fn clogl "long double complex z" 19*84d9c625SLionel Sambuc.Sh DESCRIPTION 20*84d9c625SLionel SambucThese functions compute the complex natural (base e) logarithm 21*84d9c625SLionel Sambucof 22*84d9c625SLionel Sambuc.Ar z , 23*84d9c625SLionel Sambucwith a branch cut along the negative real axis. 24*84d9c625SLionel Sambuc.Sh RETURN VALUES 252fe8fb19SBen GrasThese functions return the complex natural logarithm value, 262fe8fb19SBen Grasin the range of a strip mathematically unbounded along the 27*84d9c625SLionel Sambucreal axis and in the interval [\-i pi,\ +i pi] along the 282fe8fb19SBen Grasimaginary axis. 29*84d9c625SLionel Sambuc.Sh ERRORS 302fe8fb19SBen GrasNo errors are defined. 31*84d9c625SLionel Sambuc.Sh SEE ALSO 32*84d9c625SLionel Sambuc.Xr cexp 3 , 33*84d9c625SLionel Sambuc.St -p1003.1-2001 34*84d9c625SLionel Sambuc.Aq Pa complex.h 35*84d9c625SLionel Sambuc.Sh COPYRIGHT 362fe8fb19SBen GrasPortions of this text are reprinted and reproduced in electronic form 372fe8fb19SBen Grasfrom IEEE Std 1003.1, 2003 Edition, Standard for Information Technology 382fe8fb19SBen Gras-- Portable Operating System Interface (POSIX), The Open Group Base 392fe8fb19SBen GrasSpecifications Issue 6, Copyright (C) 2001-2003 by the Institute of 40*84d9c625SLionel SambucElectrical and Electronics Engineers, Inc and The Open Group. 41*84d9c625SLionel SambucIn the 422fe8fb19SBen Grasevent of any discrepancy between this version and the original IEEE and 432fe8fb19SBen GrasThe Open Group Standard, the original IEEE and The Open Group Standard 44*84d9c625SLionel Sambucis the referee document. 45*84d9c625SLionel SambucThe original Standard can be obtained online at 462fe8fb19SBen Grashttp://www.opengroup.org/unix/online.html . 47