KeywordDerivative,Hyperbolic secant curve. |
Reference[1]:オーム社編:『機械工学公式集』,オーム社,pp.20,1960. |
Remarks
・LaTeX: \frac{d}{dx}\textup{sech}\, x=-\textup{sech}\, x\textup{tanh}\,x\; , \textup{sech}\, x=\frac{1}{\textup{cosh}\, x}\; ,\textup{tanh}\, x=\frac{\textup{sinh}\,x}{\textup{cosh\,x}}
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History・2010/02/26:Upload. |