gMath Add-on - Create graphs and write complex math directly in your Google Doc! Create complex math and graphs directly from the sidebar in your Google Doc. You can use LaTeX commands or prebuilt codes to create complex math not possible using built-in Equation Editor. Include Geometric signs, custom characters, & formulas (like the Quadratic formula). With the graph creator, you can type in an equation in the y= format and it will create the graph associated with that function.