Operation between Cells-constant-vector-matrix (4D-problem), cell indexing/storing.

Question

fredo ferdian 2016-12-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/317225-operation-between-cells-constant-vector-matrix-4d-problem-cell-indexing-storing

Hello, I try to do some calculation about 4-D problem, calculating parameter which the value will be different for every coordinate x,y,z. I got stuck in the operation between cell array because different type of variable involved. The operation actually quite simple, but the main problem is about calling the specific element of the vector in specific cell. Here’s some description of the problem:

n as cell index = 1000ea (I have 1000 cells)

G(n)=constants(n)*Vector 3x1 (n)* Matrix 5x5 (n)

I want G as a matrix 5x5(n ea) times 3 So, I will have 1000 G as a Matrix 5x5 in each cell but I have 3 of them. In the end I will have 3000 G. I was thinking that the solution might be creating some loop, but I don’t think I can store them.

First I start with something like this more or less.

if true
for index2=1:3
   for index = 1 : 1000
      SecondTerm{index};
      G{index}=FirstTerm{index}*ans(index2)*ThirdTerm{index};
   end
end 
end

FirstTerm is constant, SecondTerm is Vector and ThirdTerm is Matrix. The second term represent the z coordinate, whereas for the ThirdTerm represent the x and y coordinate.

This loop only created 1000 G Matrix 5x5. I might need to do something with G-indexing but still can’t find any idea yet. Anybody would like give some suggestion?

Thanks in advance.