Why I am unwilling to use Mathematica if I can help it
- From: hrubin@xxxxxxxxxxxxxxxxxxxx (Herman Rubin)
- Date: 11 Jul 2005 10:56:14 -0500
In article <eKgAe.98$Rv7.58@xxxxxxxxxxxxxxxxxxxxxxxxxx>,
symbio <symbio@xxxxxxx> wrote:
>Evaluating (using //N) two exact same expressions, gives wrong answer unless
>fullsimplify is used first, I spent 2 days on a problem thinking my answer
>was wrong, but turned out Mathematica 5 was giving me buggy answers, I
>debugged it to this point, but WHY in the world is this happening? Please
>help!!!
>cut and paste below to see the test case:
>In[243]:=
>\!\(\(Cosh[\(43\ \[Pi]\)\/\@2] + \((1 - Cosh[43\ \@2\ \[Pi]])\)\ Csch[
> 43\ \@2\ \[Pi]]\ Sinh[\(43\ \[Pi]\)\/\@2] // FullSimplify\) //
> N\[IndentingNewLine]
> Cosh[\(43\ \[Pi]\)\/\@2] + \((1 - Cosh[43\ \@2\ \[Pi]])\)\ Csch[
> 43\ \@2\ \[Pi]]\ Sinh[\(43\ \[Pi]\)\/\@2] // N\)
>Out[243]=
>\!\(6.551787517854307`*^-42\)
>Out[244]=
>\!\(\(-1.9342813113834067`*^25\)\)
This weird collection of uses of \ and [], and other such
uses of unnatural mathematical notation, are what I have
against Mathematica.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University
hrubin@xxxxxxxxxxxxxxx Phone: (765)494-6054 FAX: (765)494-0558
.
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