[Maxima] Wrong limits
Richard Fateman
fateman at cs.berkeley.edu
Fri Nov 2 12:18:30 CDT 2007
interestingly, if you do h1:radcan(h);
then limit(h1,k,1/3,plus)
and
limit(h1,k,1/3,minus)
produce the right answers in wxmaxima.
RJF
_____
From: maxima-bounces at math.utexas.edu [mailto:maxima-bounces at math.utexas.edu]
On Behalf Of Stavros Macrakis
Sent: Friday, November 02, 2007 9:58 AM
To: Paul Smith
Cc: maxima at math.utexas.edu
Subject: Re: [Maxima] Wrong limits
Thanks for bringing this particular bug to our attention.
.......snip....
On 11/2/07, Paul Smith < phhs80 at gmail.com <mailto:phhs80 at gmail.com> > wrote:
(%i1)
h:-(k^(k/(k-1))*(2*k-1)*2^(k/(k-1)))/((k-1)*(k*2^((2*k)/(k-1))-2^((2*k)/(k-1
))-2*k+1))$
(%i2) limit(h,k,1/3,plus);...
Both limits are wrong: the first one is +oo and the second one is -oo.
Can one really trust Maxima regarding the calculation of limits?...
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