In scalar context, perl treats the .. and ... operators as only slightly different from one another, just like the other repondants said. Thus: 
if(a() ... b()) { # etc

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and 
if(a() .. b()) { # etc

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are almost, but not exactly the same. That's the reason why both exist.

In list context, that is, the way you were using it, they appear to act exactly the same. I can't, in the same perspective, really imagine 

print 3 .. 3;

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to behave differently from 
print 3 ... 3;

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Can you?

In reply to Re: Perl treats '...' the same as '..'. Why? by bart
in thread Perl treats '...' the same as '..'. Why? by samtregar

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