44 using both arguments, but no \n. Add 3 for -l to get it.
0        1         2         3         4
12345678901234567890123456789012345678901234
$b=pop;$b=($b+$ARGV[0]/$b)/2for 0..9;print$b

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Pepik

In reply to Re: computing square root by hand -- no sqrt (golf, beginner) by pepik_knize
in thread computing square root by hand -- no sqrt (golf, beginner) by boo_radley

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