Use a sexeger (a reverse regex): 
$n = reverse scalar sprintf("%2.4f",$n);
$n =~ s/^0+//g;
$n = reverse scalar $n;
$n =~ s/\.$//g;

[download]
now if could just condense those two regexes into one ... but sometimes, brute force is better than cleverness.

UPDATE: aha! 

$n = reverse scalar sprintf("%2.4f",$n);
$n =~ s/^0+\.?//g;
$n = reverse scalar $n;

[download]
that was easier than i thought ... unless i missed something [And i did ... glad i retested, because i had forgotten to espace the dot .. bad jeffa. Also, the scalar keywords are not necessary].

And jmcnamara++ ... that's the best solution posted (IMHO) since you already are using sprintf.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to (jeffa) 3Re: Eliminating Trailing Zeros by jeffa
in thread Eliminating Trailing Zeros by Anonymous Monk

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