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From: | Quentin Spencer |
Subject: | Re: How to simplify 35/40? |
Date: | Mon, 06 Jun 2005 14:05:18 -0500 |
User-agent: | Mozilla Thunderbird 1.0.2-1.3.3 (X11/20050513) |
Henry F. Mollet wrote:
It's also possible that vpa.m is a more recent addition. I was able to find/use rats.m but could not find vpa.m in my octave-forge distribution (probably about a good year old). Henry on 6/6/05 2:40 AM, address@hidden at address@hidden wrote:But, using the function vpa I have the following error message: octave2.1:43> vpa ("35/40") error: `vpa' undefined near line 43 column 1 Why?Probably because you don't have the "octave-forge" installed.
The vpa function has been in octave-forge since February 2003, but as part of the symbolic package, it requires GiNaC. If GiNaC is not installed when octave-forge is compiled, the symbolic functions are skipped over and not installed. If you downloaded a binary version of Octave and octave-forge from somewhere, GiNaC may or may not be included. If you want to build your own octave-forge, GiNaC can be obtained at www.ginac.de and its dependency CLN at www.ginac.de/CLN. -Quentin ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------
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