Atan

Parameters

x

real

A value between -1 and 1.

comment

Arctangen, one of the inverse trigonometric functions. The result is returned in radians in range [-π/2, π/2]. Returns 0 for invalid input.

pure

This function is pure. For the same values passed to it, it will always return the same value.

patch

1.00

Source

common.j

return type

real

Source code

native Atan     takes real x returns real