Insert Function

Displays a list of the functions, (including constants, operators, math symbols, and punctuation) you can use in a formula. It allows you to insert any of these components directly into the formula text area.

Tips:

To locate an entry, type the first few characters of its description (using the correct capitalization).
You can drag a function to the desired place in the formula or double-click to insert it at the cursor position.
To resize the text box and lists, drag one of the frames between them.