Math Trek

  1. Math

    Ranking College Football Teams

    Network math leads to an alternative, simpler ranking scheme for college football.

    By Ivars Peterson
  2. Math

    Climbing a Watery Slope

    A water-walking insect can propel itself up steep, slippery slopes without moving its legs.

    By Ivars Peterson
  3. Math

    Ask-a-Friend Marketplaces

    If you ask enough friends, paying for answers to questions can help you get the answers you need from a social network.

    By Ivars Peterson
  4. Math

    Sliding Around

    Seemingly simple sliding-coin puzzles can be surpassingly tough.

    By Ivars Peterson
  5. Math

    Chaotic Moon

    Saturn's craggy moon Hyperion tumbles erratically as it orbits the planet.