math.h implementation

[greatkingrat]

Can I get a reliable and accurate source code in C
for math.h which doesn't use harware FPU instructions?

Thank you so much.
Hee S. Chung
heesc@netian.com

http://www.netian.com/~heesc

 

[greatkingrat]

Finally I got it. Thanks.
Hee S. Chung
heesc@netian.com

http://www.netian.com/~heesc

 

[Nosferatu]

Could you post the link, i am very curious about this...
Thanks. [red]Nosferatu[/red]
We are what we eat...
There's no such thing as free meal...

 

[Cagliostro]

could you share the link? Ion Filipski

filipski@excite.com

 

[greatkingrat]

Sure,

http://www.netlib.org/cephes/

Actually it was needed to make a program for PalmOS.
I'm not using CodeWarrior and currently PRC tools doesn't
support math.h for double precision floating point.
Only single precision version of math.h is present.

So I downloaded the source code of PRC and I found the
math library which is called 'Cephes Math Library'
is used in PRC source codes.

Download *.shar files in the above site. You need the
unix command 'sh' to generate c code from .shar files.

If you use Windows, you need to download cygnus-win32
which contains 'sh' command.

I didn't fully test its accuracy but my test for cosine
function was successful. Results of cephes' function and
standard math.h function were exactly the same.
( I tested it using Cygnus-win32 and I think some modification
is needed to be compiled using another compilers )

And the single precision of this library is already used
in the PRC tools. PRC tools is officially distributed for
PalmOS developers.
Hee S. Chung
heesc@netian.com

http://www.netian.com/~heesc