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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.
Get started now by creating a new collection.
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This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
Strictly speaking one cannot know from the instructions whether the slope is supposed to be dx/dy or dy/dx, the latter being "correct" is only a matter of convention.
This shouldn't work. What if a is 0 and b is -1? Then it should return 0 but this would return NaN.