In a right angled triangle

tan(val) = Opposite / Adjacentwhere val is one of the three angles.NOTE:The value returned is in radians, not degrees.NOTE:Pi/2, (3 pi/2), -pi/2 and a vast number of other values will error with this function due to their returning infinity, a graph representation of this would produce asymptotes at these values.

tan(val);

Argument | Description |
---|---|

val | The angle (in radians) to return the tangent of. |

Real

val = tan( pi );

This will set val to 0.