Display MoreGood point. Doing math in Microsoft Word is a pain in the butt.
For those unfamiliar with the discussion, a LaTex equation looks like this:
\begin{equation}
H_{\textrm{in}} = \sum\limits_\mathrm{0}^T {\Delta W \times \Delta
\mathrm{t}},
\end{equation}
Not WYSIWYG.
If you want latex + wysiwyg try Lyx. Math is quickest to write in latex with one of the many instant preview programs. E.g Visual Studio Code + latex instant preview from markdown