arctan

Use the arctan function to calculate the arc tangent of an angle.

arctan ( value )

The result of this function is of type NUMBER.

This function has one parameter:

• value, type NUMBER. The value with arc tangent to be calculated.

The result is in the range of -π/2 to π/2.

Examples

arctan (0) results in 0

arctan (90) results in 1.559685673

arctan (3.141592654) results in 1.262627256