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Title Multiplication of Two Matrices
Author Nunna Santhosh Kumar
Author Email santu_nunna [at] yahoo.com
Description Program for Multiplication of two matrices using OOP concept
Category C++ » Data Structures
Hits 372102
Code Select and Copy the Code
Code : #include<iostream.h> #include<conio.h> class matrix { int a[10][10], m,n; public: matrix() { } matrix(int m,int n) { this->m=m; this->n=n; } void set_mat() { for(int i=0;i<m;i++) for(int j=0;j<n;j++) a[i][j]=0; } void read_mat(); void disp_mat(); void mul_mat(matrix,matrix); }; void matrix :: read_mat() { for(int i=0;i<m;i++) for(int j=0;j<n;j++) { cout<<"enter element "<<i+1<<","<<j+1<<"?"; cin>>a[i][j]; } } void matrix :: disp_mat() { cout<<"Matrix Elements: "; for(int i=0;i<m;i++) { for(int j=0;j<n;j++) cout<<a[i][j]<<" "; cout<<endl; } } void matrix :: mul_mat(matrix m1,matrix m2) { if(m1.n!=m2.m) cout<<"matrix multiplication is not possible "; else { for(int i=0;i<m1.m;i++) for(int j=0;j<m1.n;j++) for(int k=0;k<m2.n;k++) { a[i][j]+=m1.a[i][k]*m2.a[k][j]; } } } void main() { int m,n,p,q; clrscr(); cout<<"enter first matrix size ?"; cin>>m>>n; matrix m1(m,n); m1.read_mat(); cout<<"enter second matrix size ?"; cin>>p>>q; matrix m2(p,q); m2.read_mat(); matrix m3(m,q); m3.set_mat(); m3.mul_mat(m1,m2); m1.disp_mat(); m2.disp_mat(); m3.disp_mat(); getch(); }

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