OpenEuphoria

Re: Core Euphoria Functions

• Posted by CChris <christian.cuvier at ag?iculture?gouv.fr> Jan 24, 2008
• 688 views

Robert Craig wrote:
> 
> George Orr wrote:
> > To Rob and company - 
> > 
> > Is there a reason that we have the natural logarithm log(x) as a core
> > Euphoria
> > function but do not have exp(x)?  I know I can get the equivalent using
> > power(x,y)
> > provided I remember the value of e to enough significant places.
> 
> I didn't like to add lots of very simple global functions that
> the programmer could create for himself, probably in 
> less time than it would take him to browse through the manual.
> 
> We have "PI" in misc.e.
> We could add "e" as well,
> but I bet that would cause a lot of naming conflicts.
> 
> Regards,
>    Rob Craig
>    Rapid Deployment Software
>    <a href="http://www.RapidEuphoria.com">http://www.RapidEuphoria.com</a>

For largish values of x (around 12 iirc, I don't have my test files at hand),
power(E,x) starts drifting from exp(x), even with the most accurate value of E as
double..
Introducing exp() would have the side benefit of not needing to define E -
because of the likely name clashes -, since exp(1.0) would work well.

CChris