Functions

There are 36 build-in common functions, such as: Sin, Cos, Inv, Exp, Ln, Mod, Pow, Sqrt, etc. To input a function, just simply click the function button, the current expression will be surrounded by the function name and a pair of brackets. You can also input functions directly in the expression box if you have known the function names. It's possible to call another functions in a function body.

Example 1: Calculate Sin(30)

1. Make sure Input Number Format is: Dec

2. Make sure the Angle Format is: Degree

3. Input the expression: Sin(30)

   or click buttons sequently: 3, 0, Sin

4. Make sure Output Format is: Dec

5. Result is: 0.5

Note:

Make sure the checkboxes "Inv" and "Hyp" are unselected, and you can see the "Sin" button, if you want click buttons step by step.

Tricks:

1. First make a selection in the expression, then click any function button, this will surround the selection with the function name and a pair of brackets.

2. Hold "Ctrl" button of your computer keyboard and click any function button, this will simply input a function name at current position, or replace the selection with the function name if you have made a selection.

3. You can define you own functions, certainly. Reference "How I ? -> define my own functions" section for details.