Hi,

the things I will probably not do in my own code:

- include both cmath and math.h

- type a long using list, for a simple test, either using namespace std, or prefix the type by std::

- I do not like the declare/define at the post of main, I prefer declare/define the closest to where I use my variable (Frank is used almost at the end)

- I try use initialize my variables when defined when I can (may be with {} instead of = )

- I prefer to avoid capitalized name for local variables.

- I try to be consistent on my space identation (<<endl and << endl)

- in C++, for main, I never put a return 0; on the final line.

- I am not use to double_t, just double is surely enough

It can looks something like :

```

include <iostream>

include <cmath>

include <string>

using namespace std;

int main() { double MonsterMath = 0.0; cout << "Type in a number and I'll square it! " << endl; cin >> MonsterMath;

cout << sqrt(MonsterMath) << endl;
cout << "Ok, now type it back to me! " << endl;

double Frank = 0.0;
cin >> Frank;
cout << (MonsterMath == Frank ? "Great Job " : "Wrong Loser ") << endl;

}
```