Prove that the two dimensional rotation matrix preserves dot products (e.g. show that ). So So . And + . How is this equaled to ?
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Originally Posted by heathrowjohnny Prove that the two dimensional rotation matrix preserves dot products (e.g. show that ). So So . And + . How is this equaled to ? First a couple of mistakes that need fixing up: + . See how it'll work now?
Hello, heathrowjohnny! You dropped a few minus-signs . . . Prove that the two dimensional rotation matrix preserves dot products (e.g. show that ). Then: . . And: . . . . . . . . . . . . . .
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