My entry was, 

perl -MMath::Pari -e'Math::Pari::setprecision(10000); my $foo = PARI(5
+); my $bar = $foo->sqrt; print $bar,$/,$bar**2,$/'

[download]
which is cheating I suppose. But it's really fast.

After Compline,
Zaxo

In reply to Re: Fun Question: Square Root of 5 to 10000 digits by Zaxo
in thread Fun Question: Square Root of 5 to 10000 digits by zentara

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