| Computer Science 242Homework ASuggested review problems - not collected.
  See also gradient descent notes.AIMA Chapter 3
    Ex 3.25, 3.29, 3.31, 3.37
  AIMA Chapter 4
      Ex 4.1
      (The exam will not require calculus, but this problem does.) Write down gradient functions of
	
	  f(x,y) = x^2 + y^2
	  f(x,y) = sqrt(x^2 + y^2)
	  f(x,y) = xy
	  f(x,y) = max(x,y)
	  f(x,y) = min(x,y)
	For each function above, is the function convex, concave, or neither?
    AIMA Chapter 5
    Ex 5.1, 5.7 (first paragraph only), 5.13
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