Computing Hyperbolic Functions: Tips for Evaluating cosh(ln2)

[kasse]

I wonder how I can compute hyperbolic terms like cosh(ln2). The calculator we're allowed to use doesn't have buttons for calculating hyperbolic functions.

 

[quasar987]

The hyperbolic trig functions are just sums and ratios of exponential function.

type hyperbolic function on wiki or something.

 

[dextercioby]

Incidentally, your example is trivial, if you know that

$$\cosh x =\frac{e^{x}+e^{-x}}{2}$$

Daniel.