I herebey nominate this "flame" for the Quote of the Year Award.

More seriously : rjf is probably right in stating that a mathematical error 
is more likely to be detected by mathematicians rather than 
"results-oriented" people : in most *practical* cases, an approximation 
will not be practically distinguishable from the exact results, but still 
lead to possible catastrophe. Furthermore, most "results-oriented" people 
will happily sacrifice correctness on the altar of practicality.

And when practicality includes social or political feasibility, the 
sacricice has dire onsequences (yes, economists, I'm looking at you : Forty 
years of "unexpected consequences" and still no incentive to revise your 
postulates...

--
Emmanuel Charpentier

Le dimanche 26 octobre 2014 16:46:54 UTC+1, rjf a écrit :
>
> This article is also discussed in another thread .. Trio .
> .
> Depending on what you are doing with the results of any computation, it
> may be prudent to verify the results. I don't know that CAS are especially
> more prone to bugs, but it may be that CAS are more likely to come up
> with results that can be disproved, thereby revealing a bug.  Or what
> is sometimes referred to as a "feature".
>
> For example, if a weather-prediction program had a bug in it that caused
> it to predict incorrectly 5% of the time, it might take a while to even
> notice.
>
> <flame>
> Fortunately, the result of many computations with CAS are of
> no consequence whatsoever.
> </flame>
>
>
>
> On Thursday, October 23, 2014 6:23:42 PM UTC-7, kcrisman wrote:
>>
>> Feature article in the Notices:
>> http://www.ams.org/notices/201410/rnoti-p1249.pdf
>> The point, as the authors say, is not about any one system; as we know, 
>> any nontrivial software (including good ol' Sage) has plenty of bugs. 
>>  Happy reading!
>> - kcrisman
>>
>

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