It's not best practice. but people don't know better and vote anyway.

the author didn't explicitly prevent this, so in my opinion it is a valid solution.

"erm, actually"
For real tho, i think this needs some kind of "do not account in rating" button. Not exactly a downvote one, because this crap is hilarious from time to time

Could be, should be, but it isn't. It's an old kata, and back then this was considered 6 kyu.

It isn't that hard in case you're completing katas that are not created in 2015, just like this one.

Please use spoiler flag next time.

In the following link you can find examples and explanations what is better, when and why.

https://stackoverflow.com/questions/20969773/exponentials-in-python-xy-vs-math-powx-y#:~:text=pow%20always%20returns%20a%20float,mixed%20input%20results%20in%20float%20).

needs more gooooools