Coshc function: Difference between revisions

Content deleted Content added
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* <math>\operatorname{Coshc}(z)= {\frac {-i \left( 2\,iz+\pi \right)
{{\rm \bfmathbf MWhittakerM}\left(0,\,1/2,\,i\pi -2\,z\right)}}{ \left( 4\,iz+2\,\pi
\right) z}}
</math>