> polarbear sounds really cool, but I can't get it to compile. I get > [...] > the code looks perfectly reasonable though - I can't see what's causing the > error. gcc is 2.95.4. that is indeed very strange. my gcc is also 2.95.4 # gcc -v Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.4/specs gcc version 2.95.4 20011002 (Debian prerelease) and i don't experience this problem.. could you try changing the code to: int i,j,n=roots.size; Complex one(1,0); complexCoefs[n] = -roots[0]; complexCoefs[n-1] = one; complexCoefs.size = n+1; for (j=1;j<n;j++) { complexCoefs[n-j-1] = one; for (i=n-j;i<n;i++) Maarten