[Maxima] inf - inf

Raymond Toy (RT/EUS) raymond.toy at ericsson.com
Mon Mar 31 07:59:02 CDT 2008


Barton Willis wrote:
> It's embarrassing, but we all know that Maxima does inf - inf --> 0.
> Here Maxima does inf - inf --> 0 in the course of computing a limit.
> What would happen to this limit problem if inf - inf --> und? Maybe
> the limit would still evaluate correctly, I don't know.
> 

Quite a while ago, I started a branch to fix these issues.  They mostly 
work, but some (many?) of the tests in the testsuite fail because of 
issues like this.  At that point, I stopped working on the changes 
because I couldn't figure out what the other code was supposed to do.

I suppose I can try to revive the code again and see what can be done 
about these issues.

Ray


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