Why didn't I think of this?

Thanks for this kata — it was a neat mix of math and array reduction. Squaring evens and rooting odds while keeping precision to two decimals was a simple but satisfying little challenge!

best answer

WHAAAT..I could never have done that

done

x,D

is it this type of floor as operation same as floor() funtion from the module Math? or it only serve for this purpose? example: you have 2.5 it only gives you 2 as a floor. then f you need to rount up or down then should be the time to use ceil and floor methods?

got: '132081019.20' expected: '132081019.2'

got: '125797416.00' expected: '125797416'

In case of one test this one is good !!!

Why you not check a != 0 and b != 0?

You clearly understood the fundamentals :)

if you recall the boolen expressions.
True and True automatically return True
True and False / False and True return False

Its smart

In factor, the acceptance tests sometimes expected a whole-number result to be given as an integer, and sometimes as a float with zero fractional part. I had to ATTEMPT several times until the (randomized) tests were happy with my "integerized" results.

on submit it gives you some surprise ;)