Complex Class Problem - How to save data in the Complex Array?

Question

I have a Complex Class, and I have added a Root() function to calculate nth roots...

https://www.sololearn.com/discuss/314267/?ref=app

Now, Instead of putting k and getting a root, I decided to pass a Complex Array and save the roots in it... That works... and printing the elements 'inside the function' shows all the correct roots...

Complex array = Complex *z;
Then did = z= new Complex[100];
And assigned the values in a for loop of k =
for(k=0;k<n;k++)
{
z[k]=Complex(real_pt,imag_pt);
}

Now,the problem

Answer 1

Please Help!

Answer 2

Is that, on calling the function with an actual argument, the values in it are unchanged!

How to ensure that the changes are reflected here as well?

Isn't a pointer/array passed by reference?
//Of course it is, it is memory itself...

Then why is it happening?
Please help!

Answer 3

Also, If I make the function return the pointer array instead, the values are altered...

But why are they the same if I pass the pointer as an argument?

Answer 4

@JPM7
But why does it work with returning?

And secondly, Isn't a vector nothing but a class containing pointer memory altered using new and delete?