  Collaborative editing questions and answers plays an important role in
quality control of Mathematics Stack Exchange which is a math Q&A Site. Our
study of post edits in Mathematics Stack Exchange shows that there is a large
number of math-related edits about latexifying formulas, revising LaTeX and
converting the blurred math formula screenshots to LaTeX sequence. Despite its
importance, manually editing one math-related post especially those with
complex mathematical formulas is time-consuming and error-prone even for
experienced users. To assist post owners and editors to do this editing, we
have developed an edit-assistance tool, MathLatexEdit for formula
latexification, LaTeX revision and screenshot transcription. We formulate this
formula editing task as a translation problem, in which an original post is
translated to a revised post. MathLatexEdit implements a deep learning based
approach including two encoder-decoder models for textual and visual LaTeX edit
recommendation with math-specific inference. The two models are trained on
large-scale historical original-edited post pairs and synthesized
screenshot-formula pairs. Our evaluation of MathLatexEdit not only demonstrates
the accuracy of our model, but also the usefulness of MathLatexEdit in editing
real-world posts which are accepted in Mathematics Stack Exchange.
