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sqrt syntax

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amiak

amiak

Programmer
Dec 17, 2002
41
US
I'm looking for a useful way to use sqrt thanks...
 
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#include <math.h>
....
double a,b;
...
a=123.0

b=sqrt(a);
....

hnd
hasso55@yahoo.com

 
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this code produces the following error message:

/tmp/ccM7zysm.o: In function 'main':
/tmp/ccM7zysm.o(.text+0x1c): undefined reference to 'sqrt'

I'm running freeBSD 4.5 on an IBM 560.

any idea what the problem is?
 
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Maybe you have to link your program with the math library (using -lm or -lmath)? //Daniel
 
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Daniel Bingo! The library must be linked.
hnd
hasso55@yahoo.com

 
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