You enter mathematics with the keyboard or the mouse, using familiar notation for entering mathematical objectsGlossary.tex#mathematical object, symbols and characters, and using simple commands for creating displayed mathematicsDisplayed_math.tex and theoremsTheorems.tex.
Although the program distinguishes between text and mathematics, it assumes you are entering text. If you want to enter mathematics, you must tell the program to interpret what you enter as mathematics.
To change from text to mathematics