what is exponentiation

Answer 1

[Spoiler Alert]
I'm french! So don't worry if I make errors.

I think it's somthing like:
2**2 = 2*2
2**3 = 2*2*2
2**4 = 2*2*2*2
etc.

Answer 2

hmmm thanks

Answer 3

power
times the power of _