I didn't ask you to derive them from calculus, I asked you to derive them from first principles.
Shouldn't be too hard for an astrophysicist.
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http://lmgtfy.com/?q=Kepler%27s+laws+of+motion And what difference would it make if I just copied what I could find here? Nothing. No, I don't feel like doing rudimentary functions concerning ellipses, when I can just as easily define these laws using a faster, more efficient method. Ask yourself, what kind of math would an astrophysicist do in 2016?