# How to Multiply the following matrices case?

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M on 17 May 2022
Edited: Matt J on 17 May 2022
How to Multiply the following matrices case:
There is a matrix "T" with size 3*3*18 and another vector array "D" with size 3*1*18
I want to multiply the first matrix in T, I mean with size 3*3*1 with all other vectors in D but dont include the one that have the same slice i.e. multiply by the vector rom size 3*1*2 to 3*1*18 ... and store the output answers.
Do the same for the 2nd,3rd ..... matrices in T .... (Don't multiply the Matrix T with specific slice number with same slice number at D)
continue multiplying the 2nd T with all D but dont include the second D .... and so on for all T and D ..

Matt J on 17 May 2022
Edited: Matt J on 17 May 2022
T=rand(3,3,18); D=rand(3,1,18);
M=pagemtimes(T,D(:,:));
M(:,logical(eye(18)))=[];
M=reshape(M,3,17,18);
whos M
Name Size Bytes Class Attributes M 3x17x18 7344 double
Matt J on 17 May 2022
Edited: Matt J on 17 May 2022
What is "separately"? Do you mean in separate elements of a cell array?
T=rand(3,3,18); D=rand(3,1,18);
M=pagemtimes(T,D(:,:));
M(:,logical(eye(18)))=[];
M=reshape(M,3,17,18);
M=reshape( num2cell(M,[1,2]) ,18,1)
M = 18×1 cell array
{3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double} {3×17 double}
whos M
Name Size Bytes Class Attributes M 18x1 9216 cell