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Re: Bug in Coefficient[ ]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg16349] Re: [mg16283] Bug in Coefficient[ ]
  • From: Andrzej Kozlowski <andrzej at tuins.ac.jp>
  • Date: Thu, 11 Mar 1999 02:16:32 -0500
  • Sender: owner-wri-mathgroup at wolfram.com

Your message has lead me to discover the weirdest thing I have ever seen
since I started using Mathematica. I still can't believe my eyes when I
see it:

In[1]:=
Coefficient[u*v^2,u*v^2]
Out[1]=
0

In[2]:=
Coefficient[v*u^2,v*u^2]
Out[2]=
1

This is not a bug, this is black magic!


On Sun, Mar 7, 1999, Mahoro Shimura <shimshim at mse.waseda.ac.jp> wrote:

>Does anyone know why Coefficient[ ] does not work in
>the follwing case?
>
>In[1]:= Coefficient[x[1]*x[2]^2,x[1]*x[2]^2]
>
>Out[1]= 0
>
>Of course, this value must be 1.
>
>(I use Matematica Ver.3.0 for SPARC.)
>
>Thanks,
>Mahoro Shimura
>e-mail:shimshim at mse.waseda.ac.jp


Andrzej Kozlowski
Toyama International University
JAPAN
http://sigma.tuins.ac.jp/
http://eri2.tuins.ac.jp/



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