Unable to multiply a matrix in loop with a matrix without loop?

Unable to execute u * q , where q and p are matrices of hermite polynomials. kindly help me..

clc; clear all 
%
format rat
syms t
M = [0 2 0 0; 0 0 4 0; 0 0 0 6; 0 0 0 0]; 
u = [0 0 0 0; 0 1/12 0 0; 0 0 1/6 0; 0 0 0 1/4]; 
%
for t =[0 1/3 2/3 1]
    p= hermiteH(0:3, t);
    q= hermiteH(0:3, t/2);
    disp ( p*M- u * q )
end

Answer 1

[KSSV]

You see your matrices are not obeying rule of matrix multiplication. The below works according to the dimensions of matrices.

format rat
syms t
M = [0 2 0 0; 0 0 4 0; 0 0 0 6; 0 0 0 0]; 
u = [0 0 0 0; 0 1/12 0 0; 0 0 1/6 0; 0 0 0 1/4]; 
%
for t =[0 1/3 2/3 1]
    p= hermiteH(0:3, t);
    q= hermiteH(0:3, t/2);
    disp ( p*M- (u * q')' )
end

[R shah]

what is meant and purpose by the prime on q?

[Stephen23]

https://www.mathworks.com/help/matlab/ref/transpose.html

https://www.mathworks.com/help/matlab/ref/ctranspose.html

[R shah]

Let me try to show again what i want to do.

   clc; clear all
  format rat
  syms t
  M = [0 2 0 0; 0 0 4 0; 0 0 0 6; 0 0 0 0]; 
  u =[1/4 1/4 1/4 1/4];  
  %
  for t =[0 1/3 2/3 1]
      p= hermiteH(0:3, t);
      q= hermiteH(0:3, t/2);
      w= diag(u);
  end
     disp (w)

i want to multiply the output matrix w with the q matrix which is in loop, how can i do so . the answer of w * q is;

       1/4            0             -1/2            0       
       1/4            1/12         -17/36         -53/108   
       1/4            1/6           -7/18         -25/27    
       1/4            1/4           -1/4           -5/4

i am new in MATLAB kindly help what should i do?

[Stephen23]

@R shah: please tell us the exact output of these commands:

 size(w)
 size(q)

[R shah]

w and q both are of size 4x4