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List:       kde-devel
Subject:    Re: arbitrary precision math lib
From:       Michal Mecinski <mimec () mimec ! org>
Date:       2006-08-21 7:42:51
Message-ID: 44E963FB.7040608 () mimec ! org
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Uwe Thiem wrote:
> many years ago (in KDE 2.x), there was a little program "kfract", a fractals 
> generator, written by me. I got tired of it, and, with my permission, it got 
> removed from kdegraphics.
> 
> Eventually, I missed it and re-implemented it under a different name and with 
> a far cleaner architecture. Six fractal types compared to the then 2 ones. I 
> haven"t released it. It's still sitting on my harddisk waiting for all the 
> necessary feature (like printing, saving,...) to be implemented.

It's nice to hear that KFract will be back - maybe it will convince me 
to return to development of Fraqtive when it has some competition :). 
I'm looking forward to seeing it.

> In your opinion, what is the fastest arbitrary precision math lib? When "long 
> double" or "double" isn't enough any more I would like to switch to it. Right 
> now, I only need +,-,*,/ for real numbers since I can optimise it a lot by 
> not using libs for complex numbers.

As to the arbitrary precision math lib, KCalc seems to use GMP with a 
wrapper class[1]. As it performs dynamic memory allocations in each 
operator I don't think it would be fast enough, though.

[1] http://websvn.kde.org/branches/KDE/3.5/kdeutils/kcalc/knumber/

-- 
Regards,
Michal Mecinski     [ http://www.mimec.org ]
 
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