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# Program to add, subtract, multiply, sort, search, transpose and merge matrices

Posted By: Easy Tutor     Category: C++ Programming     Views: 14901

## Code for Program to add, subtract, multiply, sort, search, transpose and merge matrices in C++ Programming

``` # include <iostream.h>
# include   <stdlib.h>
# include    <conio.h>

/***********************************************************************///-----------------------------  matrix  ------------------------------///***********************************************************************/class matrix
{
private:
int operation;

float matrix_a[3][3];
float matrix_b[3][3];
float matrix_c[3][3];

public:
matrix();
void get_matrix_a();
void get_matrix_b();
void get_operation();
void subtract_matrices();
void multiply_matrices();
void sort_matrix();
void find_element();
void transpose_matrix();
void merging_matrices();
void show_result_matrix();
};

/***********************************************************************///----------------------------  matrix()  -----------------------------///***********************************************************************/

matrix::matrix()
{
textmode(BW80);

operation=1;

for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
matrix_a[i][j]=0;
matrix_b[i][j]=0;
matrix_c[i][j]=0;
}
}
}

/***********************************************************************///--------------------------  get_matrix_a()  -------------------------///***********************************************************************/void matrix::get_matrix_a()
{
gotoxy(1,7);
cout<<" Enter the values of the matrix A row by row :\n "<<endl;

cout<<"\t\t\t Ú               ¿"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t À               Ù"<<endl;

gotoxy(18,11);
cout<<" A  = "<<endl;

int x=28;
int y=10;

for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
gotoxy(x,y);
cin>>matrix_a[i][j];

x+=5;
}

x=28;
y++;
}
}

/***********************************************************************///-------------------------  get_matrix_b()  --------------------------///***********************************************************************/void matrix::get_matrix_b()
{
gotoxy(1,17);
cout<<" Enter the values of the matrix B row by row :\n "<<endl;

cout<<"\t\t\t Ú               ¿"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t À               Ù"<<endl;

gotoxy(18,21);
cout<<" B  = "<<endl;

int x=28;
int y=20;

for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
gotoxy(x,y);
cin>>matrix_b[i][j];

x+=5;
}

x=28;
y++;
}
}

/***********************************************************************///----------------------  merging_matrices()  -------------------------///***********************************************************************/void matrix::merging_matrices()
{
float temp_matrix[3][6]={0};

gotoxy(1,12);
cout<<"\n The merging matrix_c of matrix_a & matrix_b is :\n"<<endl;

cout<<"\t\t\t Ú                              ¿"<<endl;
cout<<"\t\t\t ³                              ³"<<endl;
cout<<"\t\t\t ³                              ³"<<endl;
cout<<"\t\t\t ³                              ³"<<endl;
cout<<"\t\t\t À                              Ù"<<endl;

gotoxy(13,17);
cout<<" ( A,B ) = "<<endl;

for(int a=0;a<3;a++)
{
for(int b=0;b<6;b++)
{
if(b<3)
temp_matrix[a][b]=matrix_a[a][b];
else
temp_matrix[a][b]=matrix_b[a][b-3];
}
}

int x=28;
int y=16;

for(int i=0;i<3;i++)
{
for(int j=0;j<6;j++)
{
gotoxy(x,y);
cout<<temp_matrix[i][j];

x+=5;
}

x=28;
y++;
}
}

/***********************************************************************///----------------------  get_operation()  ----------------------------///***********************************************************************/void matrix::get_operation()
{
cout<<"\n ******************************************************************************"<<endl;
cout<<" * * * * * *  Operations that can be performed on Matrices  * * * * * * * * * *"<<endl;
cout<<" ******************************************************************************"<<endl;

gotoxy(1,25);
cout<<" ******************************************************************************";

gotoxy(1,7);
cout<<" Select one of the following :\n "<<endl;

cout<<"\t\t  1)-  Addition  ( A + B )"<<endl;
cout<<"\t\t  2)-  Subtraction  ( A - B )"<<endl;
cout<<"\t\t  3)-  Subtraction  ( B - A )"<<endl;
cout<<"\t\t  4)-  Multiplication  ( A * B )"<<endl;
cout<<"\t\t  5)-  Sorting  ( in ascending order )"<<endl;
cout<<"\t\t  6)-  Sorting  ( in decending order )"<<endl;
cout<<"\t\t  7)-  Finding an element "<<endl;
cout<<"\t\t  8)-  Transpose "<<endl;
cout<<"\t\t  9)-  Merging Metrices  (A,B) "<<endl;
cout<<"\t\t  0)-  Exit"<<endl;

gotoxy(19,20);

do
{
gotoxy(39,20);
cin>>operation;

gotoxy(38,20);
cout<<"  ";
}
while(operation<0 || operation>9);

if(operation==0)
exit(0);

clrscr();

cout<<"\n ******************************************************************************"<<endl;
cout<<" * * * * * *  * * * * * * * * *  Matrices  * * * * * * * * * * * * * * * * * *"<<endl;
cout<<" ******************************************************************************"<<endl;

gotoxy(1,25);
cout<<" ******************************************************************************";

switch(operation)
{
case 1 : get_matrix_a();
get_matrix_b();
break;

case 2 : get_matrix_a();
get_matrix_b();
break;

case 3 : get_matrix_a();
get_matrix_b();
break;

case 4 : get_matrix_a();
get_matrix_b();
break;

case 5 : get_matrix_a();
break;

case 6 : get_matrix_a();
break;

case 7 : get_matrix_a();
break;

case 8 : get_matrix_a();
break;

case 9 : get_matrix_a();
get_matrix_b();
break;
}
}

/***********************************************************************///----------------------  find_element()  -----------------------------///***********************************************************************/void matrix::find_element()
{
float number;
int flag=0;

int temp_array[3][3]={0};

gotoxy(1,13);
cout<<" Enter the number you want to find = ";
cin>>number;

int i=0;
int j=0;

for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
if(matrix_a[i][j]==number)
{
temp_array[i][j]=1;
flag=1;
}
}
}

gotoxy(5,15);

if(flag==0)

else
{
cout<<"The given number is at the positions : "<<endl;

int count=0;

for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
if(temp_array[i][j]==1)
cout<<"\t\t\t"<<++count<<")-  Matrix["<<i<<"]["
<<j<<"] = "<<number<<endl;
}
}
}
}

/***********************************************************************///----------------------  transpose_matrix()  -------------------------///***********************************************************************/void matrix::transpose_matrix()
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
matrix_c[j][i]=matrix_a[i][j];

}
}

/***********************************************************************///----------------------  sort_matrix()  ------------------------------///***********************************************************************/void matrix::sort_matrix()
{
if(operation==5)    //ascending
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
for(int k=0;k<2;k++)
{
if(matrix_a[j][k]>matrix_a[j][k+1])
{
float temp=0;

temp=matrix_a[j][k+1];
matrix_a[j][k+1]=matrix_a[j][k];
matrix_a[j][k]=temp;
}
}
}
}
}

elseif(operation==6)    //decending
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
for(int k=0;k<2;k++)
{
if(matrix_a[j][k]<matrix_a[j][k+1])
{
float temp=0;

temp=matrix_a[j][k];
matrix_a[j][k]=matrix_a[j][k+1];
matrix_a[j][k+1]=temp;
}
}
}
}
}

for(int m=0;m<3;m++)
{
for(int n=0;n<3;n++)
matrix_c[m][n]=matrix_a[m][n];
}
}

{
if(operation==1)
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
matrix_c[i][j]=matrix_a[i][j]+matrix_b[i][j];
}
}
}

/***********************************************************************///----------------------  subtract_matrices()  ------------------------///***********************************************************************/void matrix::subtract_matrices()
{
if(operation==2)               // a-b
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
matrix_c[i][j]=matrix_a[i][j]-matrix_b[i][j];
}
}
//b-aelseif(operation==3)
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
matrix_c[i][j]=matrix_b[i][j]-matrix_a[i][j];
}
}
}

/***********************************************************************///----------------------  multiply_matrices()  ------------------------///***********************************************************************/void matrix::multiply_matrices()
{
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
floatvalue=0;
float sum=0;

for(int k=0;k<3;k++)
{
value=matrix_a[j][k]*matrix_b[k][j];
sum+=value;
}

matrix_c[i][j]=sum;
}
}
}

/***********************************************************************///----------------------  show_result_matrix()  -----------------------///***********************************************************************/void matrix::show_result_matrix()
{
cout<<"\n ******************************************************************************"<<endl;
cout<<" * * * * * *  * * * * *  Resulting Matrix  * * * * * * * * * * * * * * * * * * "<<endl;
cout<<" ******************************************************************************"<<endl;

if(operation==5 || operation==6 || operation==7 || operation==8)
{
gotoxy(1,6);
cout<<" The value of Matrix A are :"<<endl;

cout<<"\t\t Ú               ¿  "<<endl;
cout<<"\t\t ³               ³  "<<endl;
cout<<"\t\t ³               ³  "<<endl;
cout<<"\t\t ³               ³  "<<endl;
cout<<"\t\t À               Ù  "<<endl;
}

elseif(operation!=5 || operation!=6 || operation!=7 || operation!=8)
{
gotoxy(1,6);
cout<<" The values of Matrix A and B are :"<<endl;

cout<<"\t\t Ú               ¿                  Ú               ¿"<<endl;
cout<<"\t\t ³               ³                  ³               ³"<<endl;
cout<<"\t\t ³               ³                   ³               ³"<<endl;
cout<<"\t\t ³               ³                  ³               ³"<<endl;
cout<<"\t\t À               Ù             À               Ù"<<endl;

gotoxy(45,9);
cout<<" B  = "<<endl;
}

gotoxy(10,9);
cout<<" A  = "<<endl;

int x_1=20;
int y_1=8;

for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
gotoxy(x_1,y_1);
cout<<matrix_a[i][j];

x_1+=5;
}

x_1=20;
y_1++;
}

if(operation!=5 && operation!=6 && operation!=7 && operation!=8)
{
int x_2=55;
int y_2=8;

for(int m=0;m<3;m++)
{
for(int n=0;n<3;n++)
{
gotoxy(x_2,y_2);
cout<<matrix_b[m][n];

x_2+=5;
}

x_2=55;
y_2++;
}
}

gotoxy(1,15);

if(operation==1)
cout<<" The Addition of matrix A and B is :\n "<<endl;
elseif(operation==2 || operation==3)
cout<<" The Subtraction of matrix A and B is :\n "<<endl;
elseif(operation==4)
cout<<" The Product of matrix A and B is :\n "<<endl;
elseif(operation==5)
cout<<" The matrix A in the ascending order is :\n"<<endl;
elseif(operation==6)
cout<<" The matrix A in the decending order is :\n"<<endl;
elseif(operation==8)
cout<<" The Transpose of matrix A is :\n"<<endl;

if(operation!=7 && operation!=9)
{
cout<<"\t\t\t Ú               ¿"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t ³               ³"<<endl;
cout<<"\t\t\t À               Ù"<<endl;
}

gotoxy(13,19);

if(operation==1)
{
cout<<" A + B  = "<<endl;
}

elseif(operation==2)
{
cout<<" A - B  = "<<endl;
subtract_matrices( );
}

elseif(operation==3)
{
cout<<" B - A  = "<<endl;
subtract_matrices( );
}

elseif(operation==4)
{
cout<<" A * B  = "<<endl;
multiply_matrices( );
}

elseif(operation==5 || operation==6)
{
cout<<"Sorted  A ="<<endl;
sort_matrix( );
}

elseif(operation==7)
find_element( );

elseif(operation==8)
{
cout<<" A+ ="<<endl;
transpose_matrix( );
}

elseif(operation==9)
{
cout<<" ( A,B ) = "<<endl;
merging_matrices( );
}

elseif(operation==0)
exit(0);

gotoxy(1,25);
cout<<" ******************************************************************************";

if(operation!=7 && operation!=9)
{
int x_3=28;
int y_3=18;

for(int p=0;p<3;p++)
{
for(int q=0;q<3;q++)
{
gotoxy(x_3,y_3);
cout<<matrix_c[p][q];

x_3+=5;
}

x_3=28;
y_3++;
}
}
}

main()
{
matrix obj;

do
{
clrscr( );

obj.get_operation( );

getch( );
clrscr( );

obj.show_result_matrix( );

getch( );
}
while(!0);

return 0;
}

```
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