

The most well-known program is probably LaTeXit, but that is macOS-only. To this end, you could use an equation editor, which renders single formulas in LaTeX for you. Even if you can get the font to match, Microsoft Powerpoint is not really famous for its good spacing, so someone familiar with LaTeX output will immediately notice that something is off. Select one of the following: This document only All documents based on the Normal template. Select the font and size you want to use. Go to Home, and then select the Font Dialog Box Launcher. You say you are drawing diagrams and I just guess that your labels will be of mathematical nature. To use your favorite font in Word all the time, set it as the default.
#Default font latexit download
You can download the files from the official website at All documents based on the Normal template. Select one of the following: This document only.

It is available in OpenType format and it includes the math font for use with the Microsoft equation editor. To use your favorite font in Word all the time, set it as the default. The best alternative is the Latin Modern font, which is a derivative of Computer Modern and looks pretty much the same.

There is the Computer Modern Unicode variant, but that does not include a math font. The default LaTeX font is called Computer Modern (as has been mentioned already), but that is not available as an OpenType (or TrueType font). The other answers are pretty much nonsense in my opinion.
