# Tangent Function

This figure plots the tangent function from 0 to (tau) radians. The -axis is labeled on the bottom using the circle constant. The -axis is also labeled on the top to show the numeric value of radians. The vertical asymptotes are shown with the dashed lines.

Figure |
---|

Given the angle of a right triangle as input returns the ratio of the triangle's opposite side over its adjacent side.

Radians are a unit that measure angle using the radius of a circle. One radian is equal to the amount of rotation required to travel the length of one radius along the circumference of the circle.

The circle constant τ (tau) is a geometric constant approximately equal to 6.283. The numeric value is defined as the length of any circle's circumference divided by the length of its radius.