* howto sqrt?
@ 1999-12-07 1:36 Joachim Bauernberger
1999-12-07 1:50 ` haha
1999-12-31 22:24 ` Joachim Bauernberger
0 siblings, 2 replies; 6+ messages in thread
From: Joachim Bauernberger @ 1999-12-07 1:36 UTC (permalink / raw)
To: help-gcc
hi!
i'm pretty new using the gcc. most of my programming sofar has been
under windoze 8-( using the borland tools.
unfortunatly i am not able to use the sqrt or pow function. can anybody
tell me what i'm doing wrong here?
if i compile the following c program using the compiler options: gcc -g
-D_GNU_SOURCE -Wall filename.c -o outputfile
i get these errors: undefined reference to 'sqrt'
my simple test program looks like this:
#include <stdio.h>
#include <math.h>
int main ()
{
double x = 900;
printf("\nSquare root of x = %f\n", sqrt(x));
return 0;
}
and it's the same with pow:
double x = 5, y;
y = pow(x,2);
printf("\n%g\n",y);
gives me undefined reference to pow??????
i'm sorry for boring you with newbie stuff like that.
i'd really appreaciate if anybody could help me out.....
thank's joachim!
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: howto sqrt?
1999-12-07 1:36 howto sqrt? Joachim Bauernberger
@ 1999-12-07 1:50 ` haha
1999-12-07 7:34 ` Joachim Bauernberger
1999-12-31 22:24 ` haha
1999-12-31 22:24 ` Joachim Bauernberger
1 sibling, 2 replies; 6+ messages in thread
From: haha @ 1999-12-07 1:50 UTC (permalink / raw)
To: help-gcc
Joachim Bauernberger <nuklear@singnet.com.sg> wrote:
:>i'm pretty new using the gcc. most of my programming sofar has been
:>under windoze 8-( using the borland tools.
:>unfortunatly i am not able to use the sqrt or pow function. can anybody
:>tell me what i'm doing wrong here?
Yes. You haven't read the FAQ which answers your question which has been
asked and answered frequently.
:>if i compile the following c program using the compiler options: gcc -g
:>-D_GNU_SOURCE -Wall filename.c -o outputfile
:>i get these errors: undefined reference to 'sqrt'
You just need one more option: -lm, which links in the math-library.
This library defines sqrt(), pow() and many other mathematical functions.
Haha!
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: howto sqrt?
1999-12-07 1:50 ` haha
@ 1999-12-07 7:34 ` Joachim Bauernberger
1999-12-31 22:24 ` Joachim Bauernberger
1999-12-31 22:24 ` haha
1 sibling, 1 reply; 6+ messages in thread
From: Joachim Bauernberger @ 1999-12-07 7:34 UTC (permalink / raw)
To: help-gcc
haha@here.org wrote:
> Joachim Bauernberger <nuklear@singnet.com.sg> wrote:
>
> :>i'm pretty new using the gcc. most of my programming sofar has been
> :>under windoze 8-( using the borland tools.
> :>unfortunatly i am not able to use the sqrt or pow function. can anybody
> :>tell me what i'm doing wrong here?
>
> Yes. You haven't read the FAQ which answers your question which has been
> asked and answered frequently.
>
> :>if i compile the following c program using the compiler options: gcc -g
> :>-D_GNU_SOURCE -Wall filename.c -o outputfile
> :>i get these errors: undefined reference to 'sqrt'
>
> You just need one more option: -lm, which links in the math-library.
> This library defines sqrt(), pow() and many other mathematical functions.
> Haha!
no you're right i havn't read the faq.
thank's for pointing things out.
joachim!
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: howto sqrt?
1999-12-07 7:34 ` Joachim Bauernberger
@ 1999-12-31 22:24 ` Joachim Bauernberger
0 siblings, 0 replies; 6+ messages in thread
From: Joachim Bauernberger @ 1999-12-31 22:24 UTC (permalink / raw)
To: help-gcc
haha@here.org wrote:
> Joachim Bauernberger <nuklear@singnet.com.sg> wrote:
>
> :>i'm pretty new using the gcc. most of my programming sofar has been
> :>under windoze 8-( using the borland tools.
> :>unfortunatly i am not able to use the sqrt or pow function. can anybody
> :>tell me what i'm doing wrong here?
>
> Yes. You haven't read the FAQ which answers your question which has been
> asked and answered frequently.
>
> :>if i compile the following c program using the compiler options: gcc -g
> :>-D_GNU_SOURCE -Wall filename.c -o outputfile
> :>i get these errors: undefined reference to 'sqrt'
>
> You just need one more option: -lm, which links in the math-library.
> This library defines sqrt(), pow() and many other mathematical functions.
> Haha!
no you're right i havn't read the faq.
thank's for pointing things out.
joachim!
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: howto sqrt?
1999-12-07 1:50 ` haha
1999-12-07 7:34 ` Joachim Bauernberger
@ 1999-12-31 22:24 ` haha
1 sibling, 0 replies; 6+ messages in thread
From: haha @ 1999-12-31 22:24 UTC (permalink / raw)
To: help-gcc
Joachim Bauernberger <nuklear@singnet.com.sg> wrote:
:>i'm pretty new using the gcc. most of my programming sofar has been
:>under windoze 8-( using the borland tools.
:>unfortunatly i am not able to use the sqrt or pow function. can anybody
:>tell me what i'm doing wrong here?
Yes. You haven't read the FAQ which answers your question which has been
asked and answered frequently.
:>if i compile the following c program using the compiler options: gcc -g
:>-D_GNU_SOURCE -Wall filename.c -o outputfile
:>i get these errors: undefined reference to 'sqrt'
You just need one more option: -lm, which links in the math-library.
This library defines sqrt(), pow() and many other mathematical functions.
Haha!
^ permalink raw reply [flat|nested] 6+ messages in thread
* howto sqrt?
1999-12-07 1:36 howto sqrt? Joachim Bauernberger
1999-12-07 1:50 ` haha
@ 1999-12-31 22:24 ` Joachim Bauernberger
1 sibling, 0 replies; 6+ messages in thread
From: Joachim Bauernberger @ 1999-12-31 22:24 UTC (permalink / raw)
To: help-gcc
hi!
i'm pretty new using the gcc. most of my programming sofar has been
under windoze 8-( using the borland tools.
unfortunatly i am not able to use the sqrt or pow function. can anybody
tell me what i'm doing wrong here?
if i compile the following c program using the compiler options: gcc -g
-D_GNU_SOURCE -Wall filename.c -o outputfile
i get these errors: undefined reference to 'sqrt'
my simple test program looks like this:
#include <stdio.h>
#include <math.h>
int main ()
{
double x = 900;
printf("\nSquare root of x = %f\n", sqrt(x));
return 0;
}
and it's the same with pow:
double x = 5, y;
y = pow(x,2);
printf("\n%g\n",y);
gives me undefined reference to pow??????
i'm sorry for boring you with newbie stuff like that.
i'd really appreaciate if anybody could help me out.....
thank's joachim!
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~1999-12-31 22:24 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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1999-12-07 1:36 howto sqrt? Joachim Bauernberger
1999-12-07 1:50 ` haha
1999-12-07 7:34 ` Joachim Bauernberger
1999-12-31 22:24 ` Joachim Bauernberger
1999-12-31 22:24 ` haha
1999-12-31 22:24 ` Joachim Bauernberger
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