changeset 2713:e69a683bfcf5 octave-forge

Initial commit into CVS.
author sis-sou
date Tue, 17 Oct 2006 11:32:30 +0000
parents f2a17922a667
children 03331c8cf364
files main/specfun/inst/cosint.m
diffstat 1 files changed, 32 insertions(+), 0 deletions(-) [+]
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main/specfun/inst/cosint.m	Tue Oct 17 11:32:30 2006 +0000
@@ -0,0 +1,32 @@
+## Copyright (C) 2006   Sissou   <sylvain.pelissier@gmail.com>
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+## COSINT compute the cosine integral function define by:
+##
+##                    Inf
+##                   /
+##       cosint(x) = | cos(t)/t dt
+##                   /
+##                   x
+##
+##See also : Ci, Si, sinint, expint, expint_Ei.
+
+function y = cosint(z)
+	if (nargin != 1)
+		usage ("cosint(x)");
+	endif
+	y = Ci(z);
+endfunction;
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