Re: Re: Trouble with FullSimplify
- To: mathgroup at smc.vnet.net
- Subject: [mg98665] Re: [mg98632] Re: Trouble with FullSimplify
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Thu, 16 Apr 2009 04:11:12 -0400 (EDT)
- References: <gphdse$omb$1@smc.vnet.net> <200904150857.EAA07824@smc.vnet.net>
On 15 Apr 2009, at 17:57, lehin.p at gmail.com wrote: > On 15 =DC=D0=E0, 03:16, JUN <noec... at gmail.com> wrote: >> What is wrong with the following in Mathematica 7: >> >> Clear[n]; >> FullSimplify[n Exp[-n * 0.], Element[n, Integers]] >> >> result: n/2, which is scary. If I replace 0. by $MachineEpsilon/2, I >> get a correct result. >> >> It's also fun to express your feelings about Mathematica 7 this way: >> FullSimplify[$Version Exp[$Version *($VersionNumber - >> $VersionNumber)]] >> >> Jens > > This is a terrible bug. I am very much disappointed with Simplify and > even more with FullSimplify functions in Mathematica 6 and worse in > Mathematica 7. > Anyone who uses Simplify or FullSimplify with approximate numbers fully deserves the consequences. Andrzej Kozlowski
- References:
- Re: Trouble with FullSimplify
- From: lehin.p@gmail.com
- Re: Trouble with FullSimplify