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MathGroup Archive 2006

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Re: Problem with derivate of product

  • To: mathgroup at smc.vnet.net
  • Subject: [mg67341] Re: [mg67309] Problem with derivate of product
  • From: Esa A E Peuha <peuha at cc.helsinki.fi>
  • Date: Sun, 18 Jun 2006 05:13:59 -0400 (EDT)
  • References: <200606170836.EAA28052@smc.vnet.net> <83AE65A6-9C96-4721-90EA-F5D1FE82ADAA@mimuw.edu.pl>
  • Reply-to: esa.peuha at helsinki.fi
  • Sender: owner-wri-mathgroup at wolfram.com

On Sat, 17 Jun 2006, Andrzej Kozlowski wrote:

> On 17 Jun 2006, at 17:36, Esa A E Peuha wrote:
>
> > Mathematica 5.0 seems to have trouble with parsing this input:
> >
> > In[1]:= D[Product[f[k,z],{k,0,m}],{z,n}]
> >
> > Out[1]= D[Product[f[k, z], {k, 0, m}], z]
> >
> > Has this been fixed in newer versions?
> >
> > --
> > Esa Peuha
> > student of mathematics at the University of Helsinki
> > http://www.helsinki.fi/~peuha/
> >
>
> No. Also, I do not think there is any plan to "fix it" because it is
> not considered to be "broken".

Do you mean that the change from "{z,n}" to "z" is what should happen
in this case?  (No, n has not been set equal to 1.)

-- 
Esa Peuha
student of mathematics at the University of Helsinki
http://www.helsinki.fi/~peuha/


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