[Maxima] limit of erfc
toy.raymond at gmail.com
Thu May 17 15:37:12 CDT 2012
On Thu, May 17, 2012 at 1:02 PM, Stavros Macrakis <macrakis at alum.mit.edu>wrote:
> On Thu, May 17, 2012 at 3:50 PM, Raymond Toy <toy.raymond at gmail.com>wrote:
>> I take this to mean we shouldn't have atan(inf) -> %pi/2. Which means
>> erf(inf) and friends should just return a noun. But 0*inf always returns
>> 0. Shouldn't we return und for that?
> We should either return und or leave it unsimplified. Similarly for
> inf-inf, inf^0, is(equal(inf,inf)), etc. which currently return nonsense
> I believe someone shared code for this on the list, but it hasn't been
> integrated. Not sure why. Is it incomplete? Buggy? Does it slow down
> simplification too much?
I had done some work on this long ago and I think Dieter has done some more
recent (better) work. But, AFAIK, all attempts are incomplete.
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