MULTIPLICATION OF NxN MATRIX:

Matrix multiplication is possible only if the no. of columns in matrix1 is equal to the no. of rows in matrix2.

(i.e) matrix1 -  M x N

       matrix2 -  N x P

The resultant matrix order will be M x P.

Basic step:

for(i=0;i<row1;i++)  //row1- no. of rows in matrix1

{

    for(j=0;j<col2;j++)   //col2- no. of columns in matrix2

    {

         mult[i][j]=0;

         for(k=0;k<row1;k++)

             mult[i][j]+=matrix1[i][k]*matrix2[k][j];

         printf("%d\t",mult[i][j]);

     }

     printf("\n");

}