Define Hyperbolic functions
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Define Hyperbolic functions

[From: ] [author: ] [Date: 11-10-06] [Hit: ]
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cosh(x) = (e^x + e^-x) / 2
sinh(x) = (e^x - e^-x) / 2

All the other functions are analogous to normal trig functions, i.e. tanh(x) = sinh(x) / cosh(x) etc.
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