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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
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Approved.
Done.
Done. Not sure it's much better tho.
Looks real. Thanks and sorry for that
Should be fixed, can you verify?
Remember to back up your solution, reset the trainer, and refresh the page.
ok i see the mistake in tests.
These inputs are not a single term functions, they are against the spec.
I will fix it soon. sorry for the problem.
differentiate("-x-51")
Incorrect answer for differentiate("-x-51"): '-1' should equal '0'
they are not 0, the expected answer is "1" (or "-1"). what exactly you think is wrong with then?
Maybe they made a mistake？？
Probably broken tests.
f'('-x+7') equals 1
f'('x-2') equals 1
f'('-x-96') equals -1
why are they all 0?