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Date: Wed, 09 Jul 2014 16:17:03 -0700
From: Ethan Furman <ethan@stoneleaf.us>
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Subject: Re: NaN comparisons - Call For Anecdotes
References: <53BC05FB.4050707@jmunch.dk> <53BD70F4.4000504@stoneleaf.us> <53BDAF90.8010709@jmunch.dk> <CAPM-O+yiioLm-UiV2fYqc2n9qZrN+_v6RkeqJ7mOQ3Kq+cH0CQ@mail.gmail.com> <53BDCA33.3020100@jmunch.dk>
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On 07/09/2014 04:03 PM, Anders J. Munch wrote:
> Joel Goldstick wrote:
>>
>> I've been following along here, and it seems you haven't received the answer you want or need.
>
> So far I received exactly the answer I was expecting.  0 examples of NaN!=NaN being beneficial.

python-list (in whichever from you interact with it) is in no way specialized, yet you are asking for a highly 
specialized bit of information.

> I wasn't asking for help, I was making a point.  Whether that will lead to improvement of Python, well, I'm not too
> optimistic, but I feel the point was worth making regardless.

The only point you have made is that no-one here uses them much.  You could just as easily ask how many of us use 
lead-alloy to shield our in-home nuclear reactors to get the same answer.

On the other hand, if you go and ask on the numpy and simpy and whatever-math-or-science-py lists there are, and get 
affirmative answers from them that yeah, NaN != NaN is just a huge pain and everyone is working around it, then brought 
that information back here -- well, then you will have made the point that you want to make.

--
~Ethan~