My teacher gave us a worksheet and sometimes I see csch(...) and tanh(...) and other times without the "h"

Does the h mean anything or is this probably a typo?

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- Sep 2nd 2007, 05:50 PMcircuscircuscsch(x) and tanh(x)...does the "h" mean anything?
My teacher gave us a worksheet and sometimes I see csch(...) and tanh(...) and other times without the "h"

Does the h mean anything or is this probably a typo? - Sep 2nd 2007, 05:58 PMKrizalid
They're the Hyperbolic Functions, we define as follows

$\displaystyle \sinh=\frac{e^x-e^{-x}}2$ and $\displaystyle \cosh=\frac{e^x+e^{-x}}2$ - Sep 2nd 2007, 06:09 PMcircuscircus
- Sep 2nd 2007, 06:23 PMJhevon
- Sep 2nd 2007, 06:35 PMcircuscircus
- Sep 2nd 2007, 06:36 PMThePerfectHacker
- Sep 3rd 2007, 07:44 AMKrizalid