Day 20 in Mat310

Last time: More number theoretic functions!

Next time: Application to Cryptography

Today:

Change of plans:
- I'd like to snag the "Extra apps" day from the end, and just push everything back one class session.
- That way, we can give cryptography its due.
- So we'll finish with 7.2-3 today, and the corresponding homework will be pushed back by a day as well (due next Thursday).
- We'll start 7.5 next time.
I'll push back homework 6.1, too: it's due next Tuesday. Sounds like there are some questions on it....
Euler's Phi Function
- section 7.2 summary
- Section 7.2 Examples, p. 133:
  - Example of proof technique: consider m=3, n=4
  - #3
  - #8
  - #9
- section 7.3 summary
- Section 7.3 Examples, p. 138:
  - #2
  - #1b
  - #4
  - #10

Links:

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