Function atan

atan<T>(operand): Expression<T>
An expression that takes the arctangent of another expression. The range of values returned by atan is [-PI/2, PI/2].
Type Parameters
- T extends string | number | Vector3
Parameters
- operand: Expression<T>
  The expression of which to take the arctangent. Should result in a number, point or color.
Returns Expression<T>
An expression that takes the arctangent of another expression. Results in a number, point or color.