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Groups > comp.lang.python > #74190

Re: NaN comparisons - Call For Anecdotes

From Marko Rauhamaa <marko@pacujo.net>
Newsgroups comp.lang.python
Subject Re: NaN comparisons - Call For Anecdotes
Date 2014-07-08 20:36 +0300
Organization A noiseless patient Spider
Message-ID <87wqbn92hj.fsf@elektro.pacujo.net> (permalink)
References <53BC05FB.4050707@jmunch.dk> <mailman.11644.1404840246.18130.python-list@python.org>

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Skip Montanaro <skip@pobox.com>:

> In addition to what others have written, I will add one thing. There
> are certainly situations where raising an exception is bad. Consider
> all the people in the scientific computing community doing fancy
> linear algebra sorts of things, often with missing data. They
> generally want NaN propagated and not have some long running
> calculation crash in the middle.

Do the scientific computers mind:

    >>> 1 / 0
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ZeroDivisionError: division by zero

or would they prefer their fancy linear-algebraic computation to just
forge on?


Marko

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Thread

Re: NaN comparisons - Call For Anecdotes Skip Montanaro <skip@pobox.com> - 2014-07-08 12:23 -0500
  Re: NaN comparisons - Call For Anecdotes Marko Rauhamaa <marko@pacujo.net> - 2014-07-08 20:36 +0300
    Re: NaN comparisons - Call For Anecdotes Skip Montanaro <skip@pobox.com> - 2014-07-08 12:49 -0500

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