Hyperbolic sine (sinh)
\begin{align} \label{eq:11601a} \sinh(x) = \frac{e^{x} - e^{-x}}{2} \end{align}
where —
\( e \)(Napierian base) | = 2.71828183... (Burlington, p. 377) |
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Reference — Abramowitz, equation 4.5.1, p. 83.
Also see —
Hyperbolic cos (cosh)
Hyperbolic tan (tanh)