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Summary

As you've seen in this chapter, coordinate rotation can give you some very complex behavior, but it all boils down to a couple of formulas that never change. Once you're comfortable with the formulas, you can use them anywhere. I hope you're starting to see how you can create very complicated and richly realistic motion just by adding in more and more simple techniques.

You'll be using the coordinate rotation formula quite a bit in the next chapter, where you'll learn how to handle the results of collisions of objects with different velocities and masses.


  

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