## jgar's Profile User Rating:

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Sep 27 2012 07:57 PM
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1. #### In Topic: Adding Matrix

Posted 27 Sep 2012

What I do not know how to do is how can I implement a function to add two matrices
and return the result as a pointer to a new matrix, which would be the sum of the original 2 matrices.

I am very confuse....

```double add(class matrix)
{

entries = new double *[rows];

if (rows = matrix.rows && columns == matrix.columns)

for (int i =0; i < rows; i++)
{
for( int j =0; j< columns; j++)
{
entries[rows][columns] = entries[rows][columns] + matrix[rows][columns];
}

return entries[rows][columns];
};

```
2. #### In Topic: Adding Matrix

Posted 27 Sep 2012

PLEASE CAN ANYONE GIVE SOME TIPS???
OR TELL ME IF I AM IN THE RIGHT WAY??
3. #### In Topic: List of prime numbers in C++

Posted 4 Sep 2012

Thank you very much:)
4. #### In Topic: List of prime numbers in C++

Posted 4 Sep 2012

No it's not my complete code...
That part is just the function I am going to call on the main function...
Here is my main function....

/// I also have other prototype for different functions I am working on...

```int listPrimes(int n);

int main()
{
std::string name;

name = "robbie";
capital(name);

int w = 2147483648;

cout << w-1 << endl;

cout << w << endl;

cout << w+1 << endl;

cout << w+2 << endl;

int a =10;
int b=13;

cout << "The largest is: " << maximum(5, 22, 18) << endl;

cout << "The smallest is: " << minimum(15, 18, 16) << endl;

cout << "A random number between " << a << " and " << b << " is " << random(a,B)/> << endl;

std::cout << name <<std::endl;

listPrimes(15);

system ("pause");
return 0;

}
```
5. #### In Topic: List of prime numbers in C++

Posted 4 Sep 2012

Here is the code....

```int listPrimes(int n)
{
int c, d, e =0;

for(c = 2; c <= n; c++)
{
for (d = 2; d < n; d++)
{
if (c%d ==0)
{
e = e+1;
return e;
}
}
if (e == 1)
{
return 0;
}
e =0;
}
```

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