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Re: Problem with derivate of product


You need to specify values for m and n. For example,

Table[D[Product[f[k,z],{k,0,m}],{z,n}],{m,0,2},{n,0,2}]


Bob Hanlon

---- Esa A E Peuha <esa.peuha at helsinki.fi> 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/
> 


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