Tangent
From specialfunctionswiki
The tangent function is defined as the ratio of the sine and cosine functions: $$\tan(z) = \dfrac{\sin(z)}{\cos(z)}.$$
Graph of $\tan$ over $[-2\pi,2\pi]$.
Domain coloring of $\tan$.
Properties
Derivative of tangent
Relationship between tan and tanh
Relationship between tanh and tan
Relationship between tangent, Gudermannian, and sinh
Relationship between sinh, inverse Gudermannian, and tan
