#include "stdafx.h"
#include<iostream.h>
#include<iomanip.h>
class MaTran{
int A[100][100];
int h,c;
public:
MaTran();
MaTran(int n);
MaTran(int hang,int cot);
void set(int hang,int cot)
{
h=hang;
c=cot;
}
void Nhap();
void Xuat()const;
MaTran operator+(MaTran b);
MaTran operator*(MaTran b);
};
MaTran::MaTran()
{
set(1,1);//khoi tao mac dinh khai bao mot so nguyen
}
MaTran::MaTran(int n)
{
set(n,n);//Ma tran vuong
}
MaTran::MaTran(int hang, int cot)
{
set(hang,cot);//khai bao mang 2 chieu
}
MaTran MaTran::operator+(MaTran b)
{
MaTran Tong(h,c);
if((h=b.h) && (c=b.c))
for(int i=0;i<h;i++)
for(int j=0;j<c;j++)
Tong.A[i][j]=A[i][j]+b.A[i][j];
else return MaTran(0,0);
return Tong;
}
MaTran MaTran::operator*(MaTran b)
{
MaTran Tich(h,b.c);
if(c=b.h)
for(int i=0;i<h;i++)
for(int j=0;j<b.c;j++)
{
Tich.A[i][j]=0;
for(int k=0;k<c;k++)
Tich.A[i][j]= Tich.A[i][j]+A[i][k]*b.A[k][j];
}
else return MaTran(0,0);
return Tich;
}
void MaTran::Nhap()
{
for(int i=0;i<h;i++)
for(int j=0;j<c;j++)
{
cout<<"Nhap A["<<i<<"]["<<j<<"] : ";
cin>>A[i][j];
}
}
void MaTran::Xuat()const
{
for(int i=0;i<h;i++)
{
for(int j=0;j<c;j++)
cout<<setw(5)<<A[i][j];
cout<<endl;
}
cout<<endl;
}
int main(int argc, char* argv[])
{
MaTran A;
cout<<"Nhap ma tran A: "<<endl;
A.Nhap();
A.Xuat();
MaTran B(3);
cout<<"Nhap ma tran B: "<<endl;
B.Nhap();
B.Xuat();
MaTran C(2,3);
cout<<"Nhap ma tran C: "<<endl;
C.Nhap();
C.Xuat();
MaTran D(2,3);
cout<<"Nhap ma tran :D "<<endl;
D.Nhap();
D.Xuat();
MaTran E=C+D;
cout<<"Ma tran tong D va C: "<<endl;
E.Xuat();
MaTran F(3,2);
cout<<"Nhap ma tran F: "<<endl;
F.Nhap();
F.Xuat();
MaTran K= D*F;
cout<<"Ma tran tich D va E: "<<endl;
K.Xuat();
return 0;
}
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