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MathGroup Archive 1998

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problem with Series

  • To: mathgroup at smc.vnet.net
  • Subject: [mg13859] problem with Series
  • From: gwesp at cosy.sbg.ac.at (Gerhard Wesp)
  • Date: Wed, 2 Sep 1998 01:30:55 -0400
  • Organization: Department of Computer Science, Salzburg University
  • Sender: owner-wri-mathgroup at wolfram.com

  when evaluating the command Series[ArcCot[x],{x,0,14}], mathematica
seems to use up unreasonably huge amounts of memory, for example on 
our ultrasparc i interrupted it when  ps -e -o
user,pid,pcpu,pmem,vsz,rss,s,stime,time,args showed
   gwesp  2071 26.2 76.2 150024 95320 S 16:53:30        1:22
/usr/common/mathematica-3.0.1/SystemFiles/Kernel/Binaries/Solaris/MathKernel
-r

the problem also exists on linux.
 
  taylor series computation is certainly not _that_ memory intensive, so
this behaviour is bound to be a bug imo.

  could somebody try this out on a windows95/nt machine and inform  me
of the results?

the version:
In[21]:= {$Version,$ReleaseNumber}

Out[21]= {Linux 3.0 (April 25, 1997), 1}

best regards and tia,
-gerhard wesp
-- 
| Gerhard Wesp | ++43 (0)662 8044 5320 (office) | ++43 (0)662 630329
(home) |  http://www.cosy.sbg.ac.at/~gwesp
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