Mathpix - using sympy and deep learning to solve math from pictures of handwriting

[Nicolas Jimenez]

Hi all, 

I am the lead developer for Mathpix (http://mathpix.com/).  We have developed the word's first app that can solve math by simply taking pictures of your handwriting.  We use Sympy and SympyGamma as part of our stack.  Firstly, we wanted to thank the Sympy project for making this app possible.  Secondly, if anyone is interested in helping us make the app better and contributing back to Sympy (eg. see: https://github.com/augustt198/latex2sympy), please contact me, we are venture backed and located in SF.  

Cheers, 

Nico

[Harsh Gupta]

The app looks cool, I was wondering if it is a Free Software (Free as in Free Speech). An issue I noted is that the latex2sympy repository does not mention any license, which by default means all the rights are reserved and you cannot use it without permission. You should contact the author and get a license on it to avoid possible legal trouble later. Also I would **really** like you to donate to SymPy. Most of us are volunteers here who contribute in their precious free time, it is important that the fruits of labor flows back to us [2].

[1]: http://www.sympy.org/en/donate.html

[2]: https://www.youtube.com/watch?v=mY8B2lXIu6g

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[Nicolas Jimenez]

Hi Harsh, 

Although Mathpix is a free software application, it is not "free software".  

latex2sympy was developed by August Trollback who is a member of the Mathpix team.  Just added the MIT license to the repo: https://github.com/augustt198/latex2sympy/blob/master/LICENSE.txt

- Nico

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[Ondřej Čertík]

Hi Nico,

Thanks for sharing. Nico and I talked on the phone a bit. The main
work that was done Mathpix is to take an image, and get a latex
representation back. That's a very hard problem and very difficult to
do. I would love to play with that myself, but I only have an Android
phone.

They chose to use SymPy and SymPy Gamma as the backend, that's very
exciting. Thanks also for releasing the latex -> sympy convertor as
open source under the MIT license.

Nico, as I said on the phone, if you see an area for collaboration,
definitely let us know.

Ondrej

[Francesco Bonazzi]

Hi Nicolas,

are there any chance that you adapt your algorithm to extract formulae from PDF in a desktop computer?

I'm currently aware of InftyReader, but it's extremely expensive, supports Windows only, and doesn't copy the formulae directly to a computer algebra system.

[Aaron Meurer]

I just tried using it to take some pictures of some integrals on
https://en.wikipedia.org/wiki/Lists_of_integrals and it seems to work
just fine.

Aaron Meurer

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[Nicolas Jimenez]

We are developing an app where you can take a picture of an equation and it will add it to a Latex document which you can access on your desktop.  Would such an app suit your needs?

- Best,

Nico

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[Nicolas Jimenez]

One things our users are complaining about is the lack of clarity when dealing with infinite sums.  Are there any plans in Sympy to provide this information? For example, infinite series diverge by ratio test etc.  This would be super useful for learning calculus.

[Aaron Meurer]

SymPy does have Sum.is_convergent, which is new since 1.0. It would
need to be integrated into SymPy Gamma.

Aaron Meurer

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