Left Toolbar > Math Nodes > Number Arctangent
The Number Arctangent node allows you to calculate the trigonometric arctangent function of a number.
On the left toolbar choose Math Nodes > Number Arctangent
Drag the Number Arctangent icon into the Node Graph.
Connect the Output: Result.
Number
A NUMBER type of value.
Result
The number value.
Number
Number value. This attribute is exposed as input by default.