Functions Browser
In Keynote for iCloud, you can use the Functions Browser to add predefined functions to a cell or formula in a cell. To open the Functions Browser, select a table cell, then type the equal sign (=). The Functions Browser (shown below) opens in the Format  sidebar on the right.
 sidebar on the right.
If you don’t see the sidebar, click  in the toolbar. To close it, click
 in the toolbar. To close it, click  again.
 again. 
