l i n u x - u s e r s - g r o u p - o f - d a v i s
L U G O D
 
Next Meeting:
August 5: Social gathering
Next Installfest:
TBD
Latest News:
Jul. 4: July, August and September: Security, Photography and Programming for Kids
Page last updated:
2002 Jul 08 18:31

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] math.h advice?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] math.h advice?



When you compile, use the "-lm" option.  Example:

   gcc myprog.c -o myprog -lm

Make sure "-lm" comes at the end, not at the beginning.

-Mark

On Mon, 8 Jul 2002, Alexandra Thorn wrote:

>
> I'm working on a couple of C programs for my masters thesis, using a
> RedHat 7.2.somethingeruther machine.  I'd like to be able to use functions
> like sin, cos, and round, but gcc does not seem to be recognizing them,
> even though I've #included <math.h>.  Out of curiosity, I did a search for
> math.h, and then used grep to do a search for the patterns "cos", "round",
> etc., and came up with nothing.  So I guess it isn't too surprising that
> my code isn't compiling.  My question is: what's going on here?  Do I need
> to download another version of math.h from somewhere?  Has anyone
> encountered this sort of thing before?
>
> Thanks in advance,
> Alex
>
> "...for I am like a doctor who cannot give up smoking, or perhaps worse
> still, like an ecologist who cannot give up his car..."
>                                --Reg from Douglas Adams'
>                                  _Dirk Gently's Holistic Detective Agency_
>
> _______________________________________________
> vox-tech mailing list
> vox-tech@lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox-tech
>

--
Mark K. Kim
http://www.cbreak.org/
PGP key available upon request.

_______________________________________________
vox-tech mailing list
vox-tech@lists.lugod.org
http://lists.lugod.org/mailman/listinfo/vox-tech



LinkedIn
LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
facebook
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
O'Reilly and Associates
For numerous book donations.