>  NH> Otherwise, you would start getting negative numbers after a bit.

 > or better.

 >  for (n=0; n (double)n*n); } return 0;

    This baffles me. I ignored it first time round, but I really don't see
how squares can ever go negative. It is a characteristic of squares that
they are always positive. If you can get a negative number by squaring an
integer your math is by definition absurd. That was why j notation had to
be invented.

Best Wishes,
Bill.

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