Primitive of Hyperbolic Tangent Function

Theorem

 * $\ds \int \tanh x \rd x = \map \ln {\cosh x} + C$

Also see

 * Primitive of Hyperbolic Sine Function
 * Primitive of Hyperbolic Cosine Function


 * Primitive of Hyperbolic Cotangent Function


 * Primitive of Hyperbolic Secant Function
 * Primitive of Hyperbolic Cosecant Function