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User: sbar

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  1. Re:So? on A (Correct) Poincare Proof!? · · Score: 1

    Watch out! The phrase Simply connected in topology means that every two paths between any two points can be deformed into eachother in a continuous manner. E.g. Every n-sphere is simply connected, but the torus is not.
    So how do you know that the Universe is simply connected? ;)

  2. Re:Not intended as a flamebait, but... on Extending and Embedding Perl · · Score: 1

    My objections against open() or die is that (in my opinion) the statement X or Y should not be any different than Y or X. But as Perl interprets it, it really does matter so the binary or-operation is not commutative... which is strange.
    But if you like it, you like it I guess..
    Thanks.

  3. Re:Not intended as a flamebait, but... on Extending and Embedding Perl · · Score: 1

    Yes, that's it. To me it appears that Perl encourages you to blur spoken english with its legal syntax. Confusing to someone who's trying to learn it. The example I'm referring to should really be thought of as a boolean expression (since it contains 'or') but it must be interpreted according to how Perl evaluates it..

    So my original question remains: Why is this a good thing?

  4. Not intended as a flamebait, but... on Extending and Embedding Perl · · Score: 1

    Can anybody explain to me the beauty of a programming language in which it is legal to write obvious nonsense like

    Open(file) OR Die
    ???

    Thanks.

  5. Re:For the curious: on Escher and Elliptic Curves · · Score: 1

    Oh, well. Analysis is not the most popular area for elliptic curves right now.
    Try algebraic geometry, algebraic topology or crypto.
    In cryptography, one usually work over finite fields so everything becomes descrete and easy to implement.
    Generally, you can make sense of elliptic curves over any field.


  6. Re:I can't believe it! on Escher and Elliptic Curves · · Score: 1

    > 2. Not everything needs a higher meaning True, but simply glancing at other work of Escher's reveals at once the the artist's fascination for self-replicating patterns. This discovery only verifies that even this picture can be extended in Escher's spirit. That can hardly be mere coincidence. Now, by not completing the picture ad infinitum makes it of course into a marvellous piece of art.