Difference between revisions of "Tanh is odd"
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Latest revision as of 22:36, 21 October 2017
Theorem
The following formula holds: $$\tanh(-z)=-\tanh(z),$$ where $\tanh$ denotes hyperbolic tangent.
Proof
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous) ... (next): $4.5.23$
