[Haskell-cafe] Input and output of mathematical expressions

Pedro Vasconcelos pbv at dcc.fc.up.pt
Mon Jun 13 10:05:32 CEST 2011

On Thu, 9 Jun 2011 16:23:20 +0200
Jacek Generowicz <jacek.generowicz at cern.ch> wrote:

> Greetings Cafe,
> What would you recommend as a Haskell-based means of interactively  
> reading and writing mathematical formulae?
> As a toy example, what might I use to write a program which presents  
> the user with
>      Please simplify the expression: \pi x^2 + 3\pi x^2
> (Where the TeX-style expression would be presented with a greek pi
> and superscript twos on the xs.)
> The user should then have the ability to reply with something that  
> looks like the result of TeXing
>      5 \pi x^2
> Whatever means the user uses to enter this expression, he should be  
> able to preview the "typeset" version of his input before submitting.
> Any ideas?
> Thanks.

Regarding the rendering math formulas on web browsers: you might want to
have a look at MathJax (http://www.mathjax.org/). You can use LaTeX or
MathML and will work in most browsers (even if when they don't natively
support MathML).


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