The elegant dividend that Perl derives from its lack of operator ambiguity
Really? Can you describe what &, |, ++ and <> do, without taking the value of their operands into account?
Yes, overloading + to mean either string concatenation or numeric addition is a language design blunder IMHO. I'm often saddened by how many language designers were seduced by this unfortunate misfeature.
I don't call it a misfeature. It's a design decision whether you allow multiple dispatch or not. There are pro and cons, and judgement should be made in context of the entire language. If your typing system is different, multiple dispatch makes more sense (perl6 will have multiple dispatch, although I don't know whether it will have it for build in operators). Perl5 doesn't have much of it, but do note the mentioned operators. And it allows operators to be overloaded. If I want to make + to concatenate strings, I can, quite simply: 
use 5.010;
use overload '""' => sub {${$_[0]}},
             '+'  => sub {bless\do{my$o=${$_[$_[2]]}.$_[1-$_[2]]}};
BEGIN {overload::constant q => sub {bless \do {my $v = $_[0]}}} 

my $x = "Hello";
my $y = "world";
my $z = "" + uc $x;

say $x + ", " + $y;
say $z + $z;
__END__
Hello, world
HELLOHELLO

[download]
(Implementation not complete)

In reply to Re^4: Definition of numerically equal and rationale for 'you' == 'me' by JavaFan
in thread Definition of numerically equal and rationale for 'you' == 'me' by andreas1234567

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.