Write an algorithm for addition of two matrices?

Answer 1

Addition of two matrices is simply performed by iterating over all of the elements and adding elements with like indices together. A c code snippet...

for (i=0; i<N; i++) for (j=0; j<M; j++) c[i][j] = a[i][j] + b[i][j];

Answer 2

It works for 1 dimensional arrays of virtually any size (in this case it's 10);

#include

using std::cout;
using std::endl;

int main()
{
const int size = 5;
int arr1[size] = {1, 3, 5, 7, 9};
cout << endl << "First 1D matrix is: ";
for (int i = 0; i < size; i++)
{
cout << endl << arr1[i];

}

int arr2[size] = {2, 4, 6, 8, 10};
cout << endl << "Second 1D matrix is: ";
for (int j = 0; j < size; j++)
{
cout << endl << arr2[j];

}

int sum[size] = {0};
cout << endl << "Sum of these two matrices is a matrix with elements: "
for (int k = 0; k < size; k++)
{
sum[k] = arr1[k] + arr2[k];
cout << endl << k << " element is: " << sum[k];

}

system("PAUSE");
return 0;

}

Answer 3

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

c[i][j]= a[i][j] + b[i][j];

}

}