In the line 
@{$set_S[$s]} = @{$set_S[$s]} + $epsilons[$s];

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the addition creates a scalar context for the right-hand side, in which 
@{$set_S[$s]} = 1.

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To get what you want, write 
@{$set_S[$s]} = $set_S[$s] + $epsilons[$s];

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instead.

In reply to Re: Turning numbers to 1! by jds17
in thread Turning numbers to 1! by perlrocks

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