Question

create a function in matlab that sums two m x n matrices using nested loops, then returns result into a new matrix. Use nesed for loops to add matrices piece by piece. Basically means, dont program simply A+B

Function should perform error check to make sure both matrices have same number of rows/ columns.

Answer 1

clc;

clear all;

A=input('Enter matrix A');

B=input('Enter matrix B');

[m1 n1]=size(A);

[m2 n2]=size(B);

if(m1==m2 && n1==n2)

for i=1:m1

for j=1:n1

C(i,j)=A(i,j)+B(i,j);

end

end

fprintf('Sum of matrix A & B =');

display(C)

else

fprintf('ERROR--Size of matrix is not same . Can not perform addition')

end

TEST CODE EXAMPLE 1-------

OUTPUT1

Enter matrix A> [1 2;1 2]
Enter matrix B> [1 2 3;1 2 3;1 2 3]
ERROR--Size of matrix is not same . Can not perform addition

TEST CODE EXAMPLE 2

OUTPUT

Enter matrix A> [1 2 3;1 2 3;1 2 3]
 Enter matrix B> [3 2 1;3 2 1;3 2 1] 
Sum of matrix A & B =C = 
4 4 4
4 4 4 
4 4 4