Unable to perform assignment because the indices on the left side are not compatible with the size of the right side. Error in Q38 (line 10) Mat(row,col)=t1

%Questions#38
clc
clear
close
N=2
x = [4 9; 8 6]
for row=1:N
    for col=1:N
    t1=cos(5*3.14*x)
    Mat(row,col)=t1
    E1=sum(Mat,2)
    end
end

Answer 1

[KSSV]

You have to intilize them either as a cell or matrix. I am intializing as cell. check below:

%Questions#38
clc
clear
close
N=2
x = [4 9; 8 6] ;
Mat = cell(N,N) ;
E1 = cell(N,N) ;  
for row=1:N
    for col=1:N
      t1=cos(5*3.14*x)
      Mat{row,col}= t1 ; 
      E1{row,col}=sum(Mat{row,col},2) ; 
    end
end