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Is there an OCR software that can convert a graphical image (in PNG, GIF, TIFF, PDF... format) of a mathematical formula into the corresponding TeX markup?

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Related (but not duplicate?): tex.stackexchange.com/questions/1443/… – doncherry Nov 14 '13 at 18:53

Yes. There is one that I knew.

enter image description here

More details, see this link.

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There's also FFES (cs.queensu.ca/drl/ffes), which along w/ Infty is mentioned at: tug.org/interest.html – WillAdams Nov 14 '13 at 19:23

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