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Math Needed for Complexity Analysis

  • Summations
  • Logarithms
    • logb (xy) = logb x + logb y
    • logb (x/y) = logb x - logb y
    • logb xa = a logb x
    • logb a = logx a / logx b
  • Exponentials
    • a(b+c) = abac
    • abc = (ab)c
    • ab / ac = a(b-c)
    • b = alogab
    • bc = ac·logab
  • Proof techniques
  • Summation   (addition of sequences of numbers)
  • Basic probability   (for average case analysis, randomised algorithms)