MATH is OpenOffice.org's component for mathematical equations. It is most commonly used as an equation editor for text documents, but it can also be used with other types of documents or stand-alone. When used inside WRITER, the equation is treated as an object inside the text document. Similarly, one can also insert these into other OpenOffice.org programs like CALC and IMPRESS.
Type markup in the equation editor.
Right-click on the equation editor and select the symbol from the context menu.
Select a symbol from the Selection toolbox.