Re: [boost] [metamath] Error and question about function calls

From: Chris Weed (chrisweed_at_[hidden])
Date: 2005-09-12 21:35:38

On 9/12/05, Peder Holt <peder.holt_at_[hidden]> wrote:
> On 9/11/05, Chris Weed <chrisweed_at_[hidden]> wrote:
> > Hi,
> > I was trying to test the trigonometric functions and add an exp
> > function in the metamath library. I am not sure how to call them.
> 
> I have modified the sine_impl implementation in CVS, so now you can use:
>  typedef sine_double<number> type;
> double result=type();
> 
> In metamath/double/sine.hpp
> I added:
> template<typename Angle>
> struct sine_double :
>      detail::times_double_double<Angle,typename
> detail::sine_series<Angle,mpl::int_<0>,mpl::int_<13> >::type >
> {
> };
> 
> 
> >
> > Also line 58 of string_to_double.hpp needs to be changed to the
> > following to compile in gcc:
> >
> > typedef typename pow_impl<unsigned_exponent>::template apply<T>::type
> > positive_pow;
> 
> Great! changes applied to cvs.
> 
> Regards,
> Peder
> 
> >

Hi,
I have attached updated versions of sine.hpp, limits.hpp, times.hpp, I
changed to get a sine example to compile in g++.
Additionally, I have created a file for exp (exp.hpp).

It might be better to have the integer version of exp just calculate
something like pow(e,Arg) where e is a constant.
Also, I am not sure how to test the *_impl<> versions of these functions.

Chris