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/

**References**:**Problem with derivate of product***From:*Esa A E Peuha <esa.peuha@helsinki.fi>