Create a class mat of size m x n define the following matrix operations for mat type objects a addition b subtraction c multiplication?

Answer 1

#include<iostream.h>

#include<conio.h>

#include<process.h>

class mat

{

int a[20][20],b[20][20],c[20];

int i,j,k,p,q,x,y;

public:

void addition(void);

void substraction(void);

void multiplication(void);

};

void mat::addition()

{

cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";

cin>>x>>y;

cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";

cin>>p>>q;

if((x==p)&&(y==q))

{

cout<<"\nENTER THE"<<x<<"*"<<y<<"ELEMENTS OF MATRIX A::\n";

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

{

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

cin>>a[i][j];

}

cout<<"\nENTER THE"<<p<<"*"<<q<<"ELEMENTS OF MATRIX B::\n";

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

{

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

cin>>b[i][j];

}

cout<<"\nSUM OF MATRIX A & B::\n";

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

{

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

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

}

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

{

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

cout<<c[i][j]<<"\t";

cout<<"\n";

}

}

else

cout<<"\nADDITION IS NOT POSSIBLE::";

}

void mat::substraction()

{

cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";

cin>>x>>y;

cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";

cin>>p>>q;

if((x==p)&&(y==q))

{

cout<<"\nENTER THE"<<x<<"*"<<y<<"ELEMENTS OF MATRIX A::\n";

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

{

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

cin>>a[i][j];

}

cout<<"\nENTER THE"<<p<<"*"<<q<<"ELEMENTS OF MATRIX B::\n";

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

{

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

cin>>b[i][j];

}

cout<<"\nDIFFERENCE OF THE MATRIX A & B::\n";

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

{

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

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

}

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

{

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

cout<<c[i][j]<<"\t";

cout<<"\n";

}

}

else

cout<<"\nSUBSTRACTION IS NOT POSSIBLE::";

}

void mat::multiplication()

{

cout<<"\nENTER THE DIMENSION OF MATRIX A::\t";

cin>>x>>y;

cout<<"\nENTER THE DIMENSION OF MATRIX b::\t";

cin>>p>>q;

if(y==q)

{

cout<<"\nENTER THE"<<x<<"*"<<y<<"ELEMENTS OF MATRIX A::\n";

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

{

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

cin>>a[i][j];

}

cout<<"\nENTER THE"<<p<<"*"<<q<<"ELEMENTS OF MATRIX B::\n";

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

{

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

cin>>b[i][j];

}

cout<<"\nPROCUCT OF THE MATRIX A & B::\n";

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

{

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

{

c[i][j]=0;

for(k=0;k<y;k++)

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

}

}

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

{

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

cout<<c[i][j]<<"\t";

cout<<"\n";

}

}

else

cout<<"\nMULTIPLICATION IS NOT POSSIBLE::";

}

void main()

{

int c;

char ch;

mat M;

do

{

clrscr();

cout<<"\t\tMATRIX OPERATION\n\n";

cout<<"\n1.ADDITION\n2.SUBSTRACTION\n3.MULTIPLICATION\n";

cout<<"\nENTER YOUR CHOICE::\t";

cin>>c;

switch(c)

{

case 1:

M.addition()

break;

case 2:

M.substraction()

break;

case 2:

M.multiplication()

break;

default;

cout<<"Wrong Choice";

}

cout<<"\nDoyou want to continue[y/n]::\t";

cin>>ch;

}

while(ch=='y'ch=='Y');

getch();

}