[WP34S] DEG and RAD  diffs

06062014, 08:21 AM
Post: #20




RE: [WP34S] DEG and RAD  diffs
\[\sinh(x) = \frac{(e^{x}1)(e^{x}+1)}{2 e^{x}} = 2\cdot\frac{e^{\frac{x}{2}}e^{\frac{x}{2}}}{2}\cdot\frac{e^\frac{x}{2}+e^{\frac{x}{2}}}{2} = 2\cdot\sinh(\frac{x}{2})\cdot\cosh(\frac{x}{2})\]
How do you avoid infinite recursion? Or do you calculate \(e^x1\) directly without extinction for small x? Cheers Thomas PS: I should probably just have a look at the code. 

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