To multiply a 3D matrix by a vector in MATLAB, you need to decide how you want this multiplication to behave. Since direct multiplication like this isn't standard in linear algebra, you have a few options depending on what you're trying to achieve.Element-wise multiplication for each slice
If you want to multiply each slice (a 64x64 matrix) of your 3D matrix by the vector (64x1) element-wise, where each element of the vector multiplies the corresponding row of each 64x64 slice, you can use the following approach:
% Assuming A is your 3D matrix (64x64x64) and v is your vector (64x1)
result = zeros(size(A)); % Initialize the result array with the same size as A
for i = 1:size(A,3) % Loop through each slice
for j = 1:length(v) % Loop through each element of the vector
result(:,j,i) = A(:,j,i) * v(j); % Multiply each row of the slice by the vector element
end
end
