Please Help In This code
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#include <iostream>
using namespace std;
class mat{
double **data;
int r,c,a,k,j,t;
public:
mat(){ r = 0; c=0; data = NULL;}
mat(int n, int m){
r = n ; c =m;
data = new double*[r];
for(int i=0;i<r;i++)
data[i]=new double[c];
}
~mat(){
for(int i=0;i<r;i++)
delete data[i];
delete data;
}
void read()
{
for(int i=0;i<r;i++)
for(int j=0;j<c;j++)
cin>>data[i][j];
}
void add(mat m)
{
for(int i=0;i<r;i++)
for(int j=0;j<c;j++)
data[i][j]+=m.data[i][j];
}
void mul(mat m, mat &R)
{
for(int i=0;i<r;i++)
for(int j=0;j<m.c;j++)
R[i][i]=0;
for(int k=0;k<c;k++)
R.data[i][j]+=data[i][k]*m.data[k][j];
}
void trace(mat &t)
{
int i;
t=0;
for(j=0;j<r;j++)
t=t+a[i][i];
cout<<t;
}
void trans()
{
mat x(c,r);
for(int i=0;i<r;i++)
for(int j=0;j<c;j++)
x.data[j][i]=data[j][i];
data=x.daata[j][i];
r=x.r;
c=x.c;
}
void AddOffset(int k)
{
for(int i=0;i<r;i++)
for(int j=0;j<c;j++)
data[i][j]+=k;
}
void MulOffset(int k)
{
for(int i=0;i<r;i++)
for(int j=0;j<c;j++)
data[i][j]*=k;
}
void print()
{
for(int i=0;i<r;i++)
for(int j=0;j<c;j++)
cout<<data[i][j];
}
int main()
{
mat A(3,3);
A.read();
A.trace(t);
mat B(2,3);
B.read();
A.add(B);
A.trans();
mat t(2,3);
B.mul(A,t);
t.print();
return 0;
}
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Last edited on
Tell us what you need help with.
have errors when compiling
its a matrix lib.
These are easy:
- daata does not exist: data=x.daata[j][i];
- in main: t does not exist: A.trace(t);
These are not so easy:
- you didn't overload that operator for your matrix: cout<<t;
- you don't have an operator[] in your matrix: R[i][i]=0;
Last edited on