HOW TO USE EXP: Click EXP. Put one value in, click the comma, and insert another value. Then click the end parentheses.

HOW TO USE AVG: Insert a value, click the plus button ( + ), insert another value (repeat step 2 and 3 as much as you want) then click the AVG Button.

HOW TO USE √: Click √, enter desired value, then click the end parentheses.