If you want to see all functions available in the `Math`

namespace, simply type `Math`

followed by `.`

and a list of all the functions will appear.

# Call a function

The simplest way to get started in JavaScript with your XtronPro is to call one of the XtronPro’s built-in JavaScript functions. Just like how Blocks are organized into categories/drawers, the XtronPro functions are organized by namespaces, with names corresponding to the drawer names.

`Math.abs(-1)`

## Left and right parentheses, please!

Whenever you want to call a function, you give the name of the function
followed by `(`

and ending with `)`

. In between the left and right
parentheses go the function arguments:

`Math.min(1, 2)`

It’s a syntax error to have a left parenthesis without the “closing” right parenthesis:

`Math.min(`

If a function has zero arguments, you still need the parentheses in order to call the function.

## Any results for me?

Many functions return a result for you to use later in your program. This might be a number, a string, or another type of data.

`let greater = Math.max(5, 10)`