MathType lets you write and edit mathematical equations and chemical formulas in your Google Docs and Google Slides. Once installed, you will be able to access a visual mathematical editor that allows you to “edit your documents with quality mathematical formulas”. MathType also supports handwriting, so you can handwrite your math equations on any touch-enabled device and convert them into number equations to insert into your handouts and slides.
MathType also offers a chemistry toolbar that lets you write chemical formulas using symbols and elements from the periodic table. MathType offers a 30-day free trial, after which you must upgrade to continue using the tool.
Equation Editor is another good equation writer and editor to use on your Google Slides and Google Docs. Based on the same GUI-based math editor used by the popular graphing calculator Desmos, Equation Editor supports a wide variety of LaTeX expressions. Other cool features provided by this Google Slides math editor include: equation preview, ability to easily edit multiple types of equations, export and re-import equations, size and font control , and many others.
As the name suggests, Math Equations lets you convert your typesetting languages into images to use in your slideshow. You can also use it to reload equation images and edit them however you want before uploading them back to your presentation. Math Equations supports three main languages, namely Latex, AsciiMath and MathML.
FMath Editor Suite is a graphical editor that helps you insert math equations directly into your Google Docs, Sheets, Slides and Forms. Using the built-in customizable GUI, you can easily switch between Mathml, Latex and visual representation. The main features offered include: importing LaTeX or MathML code directly into your editor, accessing a wide range of predefined templates, exporting mathematical expressions to LaTeX, MathML or png files, controlling the font, size and color of your equations, add margins and padding, and many more.