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  1. R

    Question about a decay

    Have you tried with ? R.
  2. R

    Geometric Significances

    Taking the curl of a vector field allows you to calculate how much rotation that field possesses. Example taken by Wikipedia: Suppose the vector field describes the velocity field of a fluid flow (maybe a large tank of water or gas) and a small ball is located within the fluid or gas (the...
  3. R

    Integration application

    The question specified that r can assume two values. 60t for t<1, 120-60t for t>1. You're only using one of them here. R.