On Jan 5, 2010, at 4:00 PM, Rob Beezer wrote: > On Jan 5, 12:40 pm, Dana Ernst <ernst.tr...@gmail.com> wrote: >>> If you have latex installed on the sage server, it can format and display >>> latex figures in the notebook. >> >> Currently, we don't have a local server. Mostly, I've been running Sage on >> my desktop (where I have LaTeX installed). I'm not really sure what you >> mean here. > > You need to have LaTeX installed on the same machine where Sage is > executing, and it needs to be on your path so Sage can find it.
I think there is a problem here. (see below) >>> In fact, there is an option to draw graphs using TikZ and display the >>> result (Rob Beezer did a lot of work on that...). See the example about >>> halfway down >>> onhttp://mvngu.wordpress.com/2009/06/24/sage-4-0-2-released/(under the >>> Graph Theory section). >> >> I looked at the example. It appears to me that certain commands in Sage >> will produce TikZ output. What if you want to produce a figure using TikZ >> that isn't pre-coded? > > For starters: > > Try loading the tikz package with latex.add_to_preamble() (I think). When I typed latex.add_to_preamble() I received a message saying that I needed to provide two parameters. When I typed the command without the (), I got: \newcommand{\Bold}[1]{\mathbf{#1}}\hbox{ < bound method Latex.add_to_preamble of < sage.misc.latex.Latex instance at 0x10af7d2d8 > > } which I'm guessing is what was supposed to happen. >> Also, I tried to implement the first command of the example that you mention >> above and received an error message. In particular, I typed: >> >> g=graphs.PetersenGraph() >> >> and the error message was: >> >> sh: kpsewhich: command not found >> sh: kpsewhich: command not found > > kpksewhich is the tex utility that simulates seaching for packages, > fonts, etc. This suggests maybe you don't have tex visible at all (ie > on your path, whatever), so fix this first. > > Try at a system prompt: > $ kpsewhich tikz.sty > /home/rob/texmf/tex/generic/pgf/tikz.sty Here is what I got: /usr/local/texlive/2008/texmf-dist/tex/latex/pgf/frontendlayer/tikz.sty but I'm not sure if this means that sage can't find latex or not. Thanks. Dana--
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