I think there would definitely be interest in this, but very little work
towards it. See http://code.google.com/p/sympy/issues/detail?id=506
Cheers,
Julien
On Saturday, 13 April 2013 07:38:26 UTC-4, Christoph Pohl wrote:
>
> Hello,
>
> currently the printing.preview function needs an LaTeX installation to
> compile
> the expression to an image/document. Given that a LaTeX installation is not
> always available, and matplotlib has already implemented a sizeable subset
> of
> the most common LaTeX math commands, would it be possible to provide an
> alternative preview function that does not depend on LaTeX itself?
>
> A rough example of how this could work:
>
> def alternative_preview(expr, **kwargs):
> """Show rendered preview of expr"""
> from matplotlib import pyplot as plt
> latex_str = r"$ %s $" % sp.latex(expr, **kwargs)
> # matplotlib does not recognize \operatorname, but does work with
> \mathrm
> latex_str = latex_str.replace("operatorname","mathrm")
> plt.figure(figsize = (15, 2))
> plt.text(0.5, 0.5, latex_str, fontsize=30,
> horizontalalignment='center')
> plt.axis('off')
> plt.show()
>
> Maybe it would be possible to check whether LaTeX is installed, and fall
> back
> to this if it is not. I reckon most sympy users also have matplotlib
> installed,
> so this additional dependency would be acceptable, i.e. users can "choose
> their dependency", matplotlib or LaTeX.
>
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