Mercurial > forge
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; \ No newline at end of file