1.\" $NetBSD: csqrt.3,v 1.3 2013/01/29 02:05:09 matt Exp $ 2.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 3.Dd January 29, 2013 4.Dt CSQRT 3 5.Os 6.Sh NAME 7.Nm csqrt , 8.Nm csqrtf , 9.Nm csqrtl 10.Nd complex square root functions 11.Sh SYNOPSIS 12.In complex.h 13.Ft double complex 14.Fn csqrt "double complex z" 15.Ft float complex 16.Fn csqrtf "float complex z" 17.Ft long double complex 18.Fn csqrtl "long double complex z" 19.Sh DESCRIPTION 20These functions compute the complex square root of 21.Ar z , 22with a branch cut along the negative real axis. 23.Sh RETURN VALUES 24These functions return the complex square root value, in the 25range of the right half-plane (including the imaginary axis). 26.Sh ERRORS 27No errors are defined. 28.Sh SEE ALSO 29.Xr cabs 3 , 30.Xr cpow 3 , 31.St -p1003.1-2001 32.Aq Pa complex.h 33.Sh COPYRIGHT 34Portions of this text are reprinted and reproduced in electronic form 35from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology 36-- Portable Operating System Interface (POSIX), The Open Group Base 37Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of 38Electrical and Electronics Engineers, Inc and The Open Group. 39In the 40event of any discrepancy between this version and the original IEEE and 41The Open Group Standard, the original IEEE and The Open Group Standard 42is the referee document. 43The original Standard can be obtained online at 44http://www.opengroup.org/unix/online.html . 45