Function abs() calculates the absolute value of a number, the return is non-negative.

Arguments：

• Number <number>

Returns：

• Absolute value <number>, non-negative

Common Usage

Example: return the absolute value of -45.2

return abs(-45.2)

Example: return the absolute value of 1, -2.5, and -3

uncollect [1, -2.5, -3] as a
return abs(a)