Day 11 in Mat115

Today:

• Collect homework for section 2.1

• Questions/Comments on old stuff?

• Problems Pause
  • Was it interesting how we were able to use the prime factorization to address Joe's idea last time? We were looking at 6³⁰¹....

  • Christy's website recommendation: http://electronics.howstuffworks.com/upc.htm

  • Can you think of situations which require
    • mod 60
    • mod 16
    • mod 30
    • mod 17
    • others?

  • Can you figure out how to compute the day of the week for the next year? For five years from now?

  • Let's look at some simple bar codes, and see what advantages different schemes confer....

Next time: