POT POURI - ROUND 1

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Across
  1. 2. least upper value.
  2. 8. θ in e^(iθ).
  3. 9. √(S/4π)=____ where S is the surface area of sphere.
  4. 11. ∑(1/n), n=1,2,3,...
  5. 12. order of addition and multiplication does not matter.
Down
  1. 1. field dealing with events and chances.
  2. 3. (d^2y)/(dx^2 )+y=0 , here 2 is the _______ of the differential equation.
  3. 4. triangle with unequal sides.
  4. 5. not true.
  5. 6. almost x but never x until at infinity.
  6. 7. (0,1) and (1,2) are.
  7. 10. butterflies,pizzas,circles.