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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.
Thanks, cstuncsik!
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@user2686621 If you google "change of base," there are two good resources - purplemath and khan academy. Each has a helpful explanation of what's going on here. As for the logarithm itself, there is no "physics" meaning. Instead, think of it as a mathematical construction where log(x) means "the exponent of 10 (or whatever the 'base' of the logarithm is - e in this case) that gives me x." Not sure if this helps, but hope so.
I think setting rebounds to -1 initially takes care of the "last bounce" problem.
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