Why does this code in the course return 36 and 81?

Question

Cant get my head around it.
static int Pow(int x, int y=2)
{
int result = 1;
for (int i = 0; i < y; i++)
{
result *= x;
}
return result;
}
static void Main(string[] args)
{
Console.WriteLine(Pow(6));

Console.WriteLine(Pow(3, 4));
}

Answer 1

Miron Ohner

We have a method with default value y = 2 so when you don't pass 2nd parameter then this default value will work.

So in case of Pow(6) loop will be:

for (int i = 0; i < 2; i++) {
result = result * 6;
}

In 2nd case loop will be:

for(int i = 0; i < 4; i++) {
result = result * 3;
}

Answer 2

Better asked, why does the y power the x