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Groovy matching problem

mark

Match the groovy functions below with the groovy picture further below:

  • f(x,y) = x^2+4 y^2
  • g(x,y) = x^3+4 y^2
  • h(x,y) = e^{-x^2-4 y^2}
  • i(x,y) = \sin(x^2+4 y^2)

pics
pics1200×1348 115 KB

dfleming

Just a few guesses. Are
a) f(x,y)
b) i(x,y)
c) h(x,y)
d) g(x,y)