hyperbolic_functions

*by Richard Russell, April 2018*

BBC BASIC doesn't include the hyperbolic trig functions (**sinh**, **cosh**, **tanh** etc.) as a built-in feature, but they can easily be synthesised as user-defined functions as follows:

DEF FNsinh(x) = (EXP(x) - EXP(-x)) / 2 DEF FNcosh(x) = (EXP(x) + EXP(-x)) / 2 DEF FNtanh(x) = (EXP(x) - EXP(-x)) / (EXP(x) + EXP(-x)) DEF FNcoth(x) = (EXP(x) + EXP(-x)) / (EXP(x) - EXP(-x)) DEF FNsech(x) = 2 / (EXP(x) + EXP(-x)) DEF FNcsch(x) = 2 / (EXP(x) - EXP(-x))

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hyperbolic_functions.txt · Last modified: 2018/04/17 16:37 by tbest3112

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