Mathematical equations may be created using LaTeX notation. While editing a chapter, select Insert > LaTeX Equation (Block) In the resulting box, type your equation between the double-dollar signs. You can continue to edit the formula in the editor (provided that you do not remove the double-$ symbols) For multi-line equations, you must encapsulate your equation in a \displaylines{} function and separate each line with a double-slash. All rendering is performed courtesy of MathJax and CodeDogs.