I'd also recommend `:degree <= 0` as the check, rather than `= 0`, just in case someone passes `5.01` to the function (which would cause an infinite loop as you

I'd also recommend `:degree <= 0` as the check, rather than `= 0`, just in case someone passes `5.01` to the function (which would cause an infinite loop as you'd never hit exactly 0). But yes, if that was just coded into the comment box then it looks pretty good.