On 11/17/2014 06:16 PM, Ali Abdul Ghani wrote: > /tmp/cc0fh9Tm.o: In function `eratosthenes': > q.c:(.text+0x31): undefined reference to `sqrt' > collect2: error: ld returned 1 exit status > What is the problem and what is the solution? If you want math, you link with libm. http://stackoverflow.com/questions/5419366/why-do-i-have-to-explicitly-link-with-libm http://stackoverflow.com/questions/1033898/why-do-you-have-to-link-the-math-library-in-c This has been so since the dawn of time itself. Andrew.
