Re: Hyperbolic Functions Patch Set

[felix . winkelmann]

> Dear Maintainers,
> Attached you find a change-set adding the hyperbolic functions (sinh, cosh, 
> tanh) and inverse hyperbolic functions (asking, cosh, atanh) to the included 
> (chicken flonum) module. This implementations follows the trigonometric 
> function using the math library calls. I also added some basic domain tests 
> for each of these function.
>
> IMHO this is a useful addition, first, because these functions are part of 
> the standard C math library and second, even though there are closed forms, 
> the cmath functions are tuned to use different computations depending on the 
> magnitude of the input argument to counteract floating point inaccuracies.
>

Thanks a lot, Christian, much obliged.

I have combined the two patches and amended the result slightly (wrappers in
runtime.c for all trigonometric functions were not calling the
aliases from chicken.h, something we forgot and which I change here,
while we're at it. I also added a few lines of documentation).

We now just need some other -hacker to sign off push this.


felix

0001-Added-hyperbolic-and-inverse-hyperbolic-functions-in.patch
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