Resending to the submitter as the BTS does not do that automatically Ximin Luo: > Hi Jaimos, you can force use of the latex fonts by passing typeset="latex" as > a parameter to any one of the three functions plot(), text() or show() that > you're using. > > The documentation for sage.plot.graphics.show() says: > > - ``typeset`` -- (default: ``"default"``) string. The type of > font rendering that should be used for the text. The possible > values are > > - ``"default"`` -- Uses matplotlib's internal text rendering > engine called Mathtext ( see > https://matplotlib.org/users/mathtext.html ). If you have > modified the default matplotlib settings, for instance via > a matplotlibrc file, then this option will not change any of > those settings. > - ``"latex"`` -- LaTeX is used for rendering the fonts. This > requires LaTeX, dvipng and Ghostscript to be installed. > - ``"type1"`` -- Type 1 fonts are used by matplotlib in the text > in the figure. This requires LaTeX, dvipng and Ghostscript to > be installed. > > implying that the "default" setting is based on whatever matplotlib does. > Looking at sage's own patches for their matplotlib package, I see nothing > relevant that suggests they are forcing latex specifically. Neither do I see > anything relevant in Debian's matplotlib package forcing non-latex: > > - https://git.sagemath.org/sage.git/tree/build/pkgs/matplotlib > - https://sources.debian.org/src/matplotlib/2.1.1-2/debian/patches/ > > We are doing nothing specific in the Debian sagemath package either. > > Feel free to investigate further; I am unlikely to do that but would be happy > to leave this bug open for documentation purposes. Arguably it could be > reassigned to the python-matplotlib package but I am unsure if it is really > their issue, or our issue. > > X > > Jaimos Skriletz wrote: >> Package: sagemath >> Version: 7.4-9 >> Severity: minor >> >> Dear Maintainer, >> >> In upgrading to stretch from jessie I am trying to switch to using the >> Debian package for sagemath from using the packages from upstream. >> In switching I noticed the following issue: >> >> I use sagemath, via the notebook(), to mostly draw images and label >> them. For example to label a function I would use something like: >> >> P = plot( sqrt(4-x), (x,0,4) ) >> P += text( r"$y=\sqrt{4-x}$", (3.2,1.5), fontsize=16, color="black" ) >> P.show(figsize=[3,3]) >> >> The upstream version of sagemath (either the version pre-compiled for >> Debian 8 or a version I compiled on stretch use the standard LaTeX >> math fonts for formulas, while the Debian package does not. >> Images attached. >> >> I am not sure if this is an issue with how sagemath was built or a >> configuration option, but I have not been able to figure out how >> to get the Debian package to use the standard LaTeX fonts that >> I am use to. >> >
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