Difference between revisions of "Arctanh"

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[[File:Complex ArcTanh.jpg|500px]]
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The inverse hyperbolic tangent function $\mathrm{arctanh}$ is the [[inverse function]] of the [[tanh|hyperbolic tangent]] function. It may be defined by
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$$\mathrm{arctanh}(z) = \dfrac{\log(1+z)}{2} - \dfrac{\log(1-z)}{2},$$
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where $\log$ denotes the [[logarithm]].
  
<center>{{:Inverse hyperbolic trigonometric functions footer}}</center>
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<div align="center">
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<gallery>
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File:Arctanhplot.png|Plot of $\mathrm{arctanh}$ on $(-1,1)$.
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File:Complexarctanhplot.png|[[Domain coloring]] of $\mathrm{arctanh}$.
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</gallery>
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</div>
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=Properties=
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[[Derivative of arctanh]] <br />
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[[Antiderivative of arctanh]]<br />
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[[Derivative of Legendre chi]] <br />
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=See also=
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[[Arctan]] <br />
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[[Tanh]] <br />
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[[Tangent]] <br />
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{{:Inverse hyperbolic trigonometric functions footer}}
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[[Category:SpecialFunction]]

Latest revision as of 23:47, 11 December 2016

The inverse hyperbolic tangent function $\mathrm{arctanh}$ is the inverse function of the hyperbolic tangent function. It may be defined by $$\mathrm{arctanh}(z) = \dfrac{\log(1+z)}{2} - \dfrac{\log(1-z)}{2},$$ where $\log$ denotes the logarithm.

Properties

Derivative of arctanh
Antiderivative of arctanh
Derivative of Legendre chi

See also

Arctan
Tanh
Tangent

Inverse hyperbolic trigonometric functions