The atan node returns the arc tangent of the value of its child-node.

• Minimum number of child-nodes: 1
• Maximum number of child-nodes: 1
• Valid input range: no constraints
• Output range: -/2 to +/2 (radians)

The atan node's value is the arc tangent, in radians, of the value of its child-node.

For valid value₁:

value = tan^-1(value₁)