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list assignment problem




Hi Mathematica Lovers,

I am trying to write a program that requires handling 3D list. I am
faced with this problem which is unable to change the values of the
list. For example, when I run the following lines, I get this error
msg: Part::setps: jlist[[1]] in assignment of part is not a symbol.

In[294]:= jlist={{1,2},{3,4}}

Out[294]= {{1, 2}, {3, 4}}

In[295]:= jlist[[1]][[2]]=6

Part::setps: jlist[[1]] in assignment of part is not a symbol.

Out[295]= 6

I would appreciate if any one could tell me what I am doing wrong ?

regards
Rayhan




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