1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#include<iostream>
#include<conio.h>
#include<iomanip>
using namespace std;
const int ROW=5;
const int COL=5;
class matrix
{
int a[ROW][COL];
int row;
int col;
public:
matrix () : row(0), col(0)
{}
void read(int r, int c);
void display();
matrix multiply (matrix m1, matrix m2);
};
void matrix :: read(int r, int c)
{
row=r;
col=c;
for(int i=1; i<=r; i++)
for(int j=1; j<=c; j++)
{
cout<<"A["<<i<<"]["<<j<<"] : ";
cin>>a[i][j];
}
}
void matrix :: display()
{
for(int i=1; i<=row; i++)
{
for (int j=1; j<= col; j++)
cout<<setw(4)<<a[i][j];
cout<<endl;
}
}
matrix matrix :: multiply (matrix m1, matrix m2)
{
matrix temp;
temp.row=m1.row;
temp.col=m2.col;
for(int i=1; i<=temp.row; i++)
for(int j=1; j<=temp.col; j++)
{
temp.a[i][j]=0;
{
for (int k=0; k<=temp.col; k++)
temp.a[i][j] += m1.a[i][k]*m2.a[k][j];
}
}
return temp;
}
int main()
{
matrix m1,m2,m3, m4;
int r1,c1;
cout<<"Enter the order of first matrix : ";
cin>>r1>>c1;
int r2,c2;
cout<<"Enter the order of second matrix : ";
cin>>r2>>c2;
if(c1!=r2)
cout<<"Matrix multiplication not Possible\n";
else
{
cout<<"Enter elements of first matrix:\n";
m1.read(r1,c1);
cout<<"Enter elements of second matrix:\n";
m2.read(r2,c2);
m4 = m3.multiply (m1,m2);
cout<<"Resultant matrix is :\n";
m4.display();
}
getche();
return 0;
}
|
