atan
Syntax Format
atan(y[, x])
Overview
The atan returns the arctangent of a given value. The function returns the arc tangent of y/x in radians in the range [-π/2, π/2].
Parameters
| Parameter | Type | Purpose | Default State |
|---|---|---|---|
| y | series or numeric | y-coordinate proportion value | - |
| x | series or numeric | x-coordinate proportion value | 1 |
Returns: same type as y.
Example
value = atan(1) --equals ~0.7854 radians