Inverse Gudermannian
From specialfunctionswiki
The inverse Gudermannian $\mathrm{gd}^{-1}$ is the inverse function of the Gudermannian function. It may be defined by the following formula for $x \in \mathbb{R}$: $$\mathrm{gd}^{-1}(x)=\displaystyle\int_0^x \dfrac{1}{\cosh(t)} dt,$$ where $\cosh$ denotes the hyperbolic cosine.
Graph of $\mathrm{gd}^{-1}$.
Domain coloring of $\mathrm{gd}^{-1}$.
Properties
Relationship between sinh, inverse Gudermannian, and tan
Relationship between cosh, inverse Gudermannian, and sec
Relationship between tanh, inverse Gudermannian, and sin
Relationship between csch, inverse Gudermannian, and cot
Relationship between sech, inverse Gudermannian, and cos
Relationship between coth, inverse Gudermannian, and csc
