Difference between revisions of "Inverse Gudermannian"

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[[Relationship between coth, inverse Gudermannian, and csc]]<br />
 
[[Relationship between coth, inverse Gudermannian, and csc]]<br />
  
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[[Category:SpecialFunction]]
 
[[Category:SpecialFunction]]

Latest revision as of 23:10, 11 June 2016

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.

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

$\ast$-integral functions