7 kyu
Volume of a cup
664 of 1,214tdowek1
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Geometry
Fundamentals
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JS:
mocha + chai should be used
Description should be language-agnostic
Python: tests should not use strict equality for floats.
And result should not be rounded.
R translation. Please review and approve https://www.codewars.com/kumite/634861f5adea5200238629ba?sel=634861f5adea5200238629ba
Ruby 3.0 should be enabled, see this to learn how to do it
Enabled in this fork
Python 3 should be enabled.
Oooh, I love this site. I'd been scratching my head as to why my script didn't work for the first and last test in Ruby. Just discovered something I didn't know about the results of small integers divided by larger integers in ruby. Seems to be a couple of ways to handle it. Also applies to Python 2 apparently.
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The function should return a number rather than a string.
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Figured out it was about how integers are handled. Not sure if the tests were supposed to teach that in particular but definitely learned something. Nice Kata sensei :)
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You are probably using python 3. Codewars uses python 2. The significant difference in this case being that
/is integer division in python2 unlike python3. Convert the values into floats before using division.This comment has been hidden.
You're returning a String, while you're expected to return a Number.
Also, toFixed() gives bad behaviour sometimes; best practice to round x to the y decimal digit is to use
Math.round(x*Math.power(10,y))/Math.power(10,y).In this case
Math.round(x*100)/100should cut it.Ruby and Python translation submitted; after you approve them, provided you find them good, I would suggest to specify that the cup is a truncated cone (I wondered for a while if if could have been a truncated cut or something even more exoteric, even if now the kyu ranking would probably be considered a big give-away of its difficulty level).
Dusted off my trig, solved, ranked, upvoted, and translated into CoffeeScript for your approval