Need to find dot product between two second order tensor

Using matlab randi function to generate a (LxM) matrix S and a (MxN) matrix T. Component ranging from 0 to 9 with L,M,N> 2. Calculate R=S.T use for loop to iterate through the admissible values from indices i and j.

[James Tursa]

You need to provide many more details for what you are trying to do. Include a small example of inputs and desired outputs. Based on what you have written so far, I could only guess that you want S*T to give a LxN result of dot products.

[Ahmar Yanis]

% Define the matrix that represents tensor S

S = randi([0,9],3,3)

% Define the matrix that represents vecor u

u = randi([0,9],3,3)

% Apply the dot product

for i =1:size(S,1)

for k=1:size(u,2)

w(i) = dot(S(i),u(k));

end

end

the part which i dont understand is the for loop how will i iterate

Answer 1

[James Tursa]

If you change the inner loop calculation to this:

w(i,k) = dot(S(i,:),u(:,k));

then you would have dot products between the S rows and u columns. But the result of this is simply going to be the matrix product S*u as I mentioned above. I'm still not sure what you want to do. Can you give a small numeric example of inputs and desired output?