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UML diagram for better understanding of code
Inspiration My Own Needs
What it does Solve Basic Calculations
How we built it Using C++ program
What we learned Using and implementing OODP concepts in the C++ program
What's next for Matrix Calculator More interactive UI for the calculator
include
using namespace std;
class Matrix { public: int O,r,c,m,n; int a,b,**d;
Matrix()
{
printf("\t\t\t\t\t\t\tMATRIX CALCULATOR\t\t\t\t\t\t\t\n");
printf("CHOOSE : \n1.Sum of matrices\n2.Subtraction of matrices\n3.Multiplication of matrices\n4.Transpose of matrix\n5.Upper triangle of matrix\n6.Lower triangle of matrix\n7.Diagonal Matrix\n8.Zero Matrix\n9.Identity matrix\n\n");
printf("Enter your option : ");
cin>>O;
switch(O)
{
case 1:
cout<<"\nEnter order of matrix : ";
cin>>r;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
a[i]=(int *)malloc(r*sizeof(int));
}
d=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
d[i]=(int *)malloc(r*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,r,a);
cout<<"\nEnter elements of mat2 : \n";
read(r,r,d);
cout<<"\nElements of mat1 : \n";
print(r,r,a);
cout<<endl;
cout<<"\nElements of mat2 : \n";
print(r,r,d);
cout<<"\n";
cout<<"\nSum of Matrices :\n";
sum(r,r,a,d);
break;
case 2:
cout<<"\nEnter order of matrix : ";
cin>>r;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
a[i]=(int *)malloc(r*sizeof(int));
}
d=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
d[i]=(int *)malloc(r*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,r,a);
cout<<"\nEnter elements of mat2 : \n";
read(r,r,d);
cout<<"\nElements of mat1 : \n";
print(r,r,a);
cout<<endl;
cout<<"\nElements of mat2 : \n";
print(r,r,d);
cout<<"\n";
cout<<"\nSubtraction of Matrices :\n";
sub(r,r,a,d);
break;
case 3:
cout<<"\nEnter row of mat1 : ";
cin>>r;
cout<<"\nEnter column of mat1 : ";
cin>>c;
cout<<"\nEnter row of mat2 : ";
cin>>m;
cout<<"\nEnter column of mat2 : ";
cin>>n;
if(c!=m)
{
cout<<"\nWrong Input!!!\n";
break;
}
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<c;i++)
{
a[i]=(int *)malloc(c*sizeof(int));
}
b=(int **)malloc(m*sizeof(int));
for(int i=0;i<c;i++)
{
b[i]=(int *)malloc(n*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,c,a);
cout<<"\nEnter elements of mat2 : \n";
read(m,n,b);
cout<<"\nElements of mat1 : \n";
print(r,c,a);
cout<<endl;
cout<<"\nElements of mat2 : \n";
print(m,n,b);
cout<<endl;
cout<<"\nMultiplication of Matrices :\n";
mult(r,c,m,n,a,b);
break;
case 4:
cout<<"\nEnter row: ";
cin>>r;
cout<<"\nEnter column: ";
cin>>c;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<c;i++)
{
a[i]=(int *)malloc(c*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,c,a);
cout<<"\nElements of mat1 : \n";
print(r,c,a);
cout<<"\nTranspose of matrix : \n";
trnp(r,c,a);
break;
case 5:
cout<<"\nEnter order of matrix : ";
cin>>r;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
a[i]=(int *)malloc(r*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,r,a);
cout<<"\nElements of mat1 : \n";
print(r,r,a);
cout<<"\nUpper triangle of matrix : \n";
upp(r,a);
break;
case 6:
cout<<"\nEnter order of matrix : ";
cin>>r;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
a[i]=(int *)malloc(r*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,r,a);
cout<<"\nElements of mat1 : \n";
print(r,r,a);
cout<<"\nLower triangle of matrix : \n";
low(r,a);
break;
case 7:
cout<<"\nEnter order of matrix : ";
cin>>r;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
a[i]=(int *)malloc(r*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,r,a);
cout<<"\nElements of mat1 : \n";
print(r,r,a);
cout<<"\nDiagoanl matrix of matrix : \n";
dia_mat(r,a);
break;
case 8:
cout<<"\nEnter row: ";
cin>>r;
cout<<"\nEnter column: ";
cin>>c;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<c;i++)
{
a[i]=(int *)malloc(c*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,c,a);
cout<<"\nElements of mat1 : \n";
print(r,c,a);
zero_mat(r,c,a);
break;
case 9:
cout<<"\nEnter order of matrix : ";
cin>>r;
a=(int **)malloc(r*sizeof(int));
for(int i=0;i<r;i++)
{
a[i]=(int *)malloc(r*sizeof(int));
}
cout<<"\nEnter elements of mat1 : \n";
read(r,r,a);
cout<<"\nElements of mat1 : \n";
print(r,r,a);
idn_mat(r,a);
break;
default:
cout<<"\n\n\n\n\n\t\t\t\t\tWRONG DECISION....ERROR 404!!!\n\n\n\n\n";
}
cout<<"\n\n\n\n";
}
void upp(int r,int **a)
{
int i,j,s;
for(i=0;i<r;i++)
{
for(j=0;j<r;j++)
{
if(i>j)
{
a[i][j]=0;
}
cout<<a[i][j]<<" ";
}
cout<<endl;
}
}
void low(int r,int **a)
{
int i,j,s;
for(i=0;i<r;i++)
{
for(j=0;j<r;j++)
{
if(i<j)
{
a[i][j]=0;
}
cout<<a[i][j]<<" ";
}
cout<<endl;
}
}
void zero_mat(int r,int c,int **a)
{
int i,j,s;
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
if(a[i][j]==0) s=1;
else
{
s=0;
break;
}
}
}
if(s) cout<<"YES,it is a zero matrix.\n";
else cout<<"NO,it is not a zero matrix.\n";
}
void dia_mat(int r,int **a)
{
int i,j,s;
for(i=0;i<r;i++)
{
for(j=0;j<r;j++)
{
if(i!=j)
{
a[i][j]=0;
}
cout<<a[i][j]<<" ";
}
cout<<endl;
}
}
void idn_mat(int r,int **a)
{
int i,j,s;
for(i=0;i<r;i++)
{
for(j=0;j<r;j++)
{
if(i==j)
{
if(a[i][j]==1) s=1;
else
{
s=0;
break;
}
}
else
if(a[i][j]==0) s=1;
else
{
s=0;
break;
}
}
if(s==0) break;
}
if(s) cout<<"YES,it is a identity matrix.\n";
else cout<<"NO,it is not a identity matrix.\n";
}
void read(int r, int c, int **arr)
{
int i, j;
for(i=0;i<r;i++)
for(j=0;j<c;j++)
cin>>arr[i][j];
}
void print(int r, int c, int **arr)
{
int i, j;
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
cout<<arr[i][j]<<" ";
cout<<endl;
}
}
void sum(int r, int c, int **a, int **b)
{
int i, j;
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
cout<<a[i][j]+b[i][j]<<" ";
cout<<endl;
}
}
void sub(int r, int c, int **a, int **b)
{
int i, j;
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
cout<<a[i][j] - b[i][j]<<" ";
cout<<endl;
}
}
void mult(int r, int c, int p, int q, int **a, int **b)
{
int i, j, k, n[r][q];
for(i=0;i<r;i++)
{
for(j=0;j<q;j++)
{
n[i][j]=0;
for(k=0;k<c;k++)
n[i][j] += a[i][k] * b[k][j];
}
}
for(i=0;i<r;i++)
{
for(j=0;j<q;j++) cout<<n[i][j]<<" ";
cout<<endl;
}
}
void trnp(int r, int c, int **a)
{
int i, j, n[c][r];
for(i=0;i<r;i++)
{
for(j=0;j<c;j++) n[j][i]=a[i][j];
}
for(i=0;i<c;i++)
{
for(j=0;j<r;j++)
cout<<n[i][j]<<" ";
cout<<endl;
}
}
};
int main() { Matrix obj; }
Built With
- c++
- oodp
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