Looking at what you've done so far, you're basically there. Perhaps you're confused about how to output a properly formatted line? The last print statement you have will create an output file with no separation between the numbers (and no newline at the end). There are a number of ways (of course) to get it properly formatted. Some examples:

print OUT "$a $b $c\n";

printf OUT "%d %d %d\n", $a, $b, $c;

print OUT join(' ',$a, $b, $c), "\n";

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The latter two will work better if you are going to do the addition inline, e.g.:

printf OUT "%d %d %d\n", $x+$x1, $y+$y1, $z+$z1;

[download]

Brad

In reply to Re^3: Bit of maths between two files by bgreenlee
in thread Bit of maths between two files by Anonymous Monk

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