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Math 480 - W 2014: Elementary Number Theory

Textbook

Course grade

  • Your 0-4 scaled grade will be entirely determined by your average score on weekly homework assignments as follows: [(98, 4), (96.5, 3.9), (95, 3.8), (93.5, 3.7), (92, 3.6), (90.5, 3.5), (89, 3.4), (87.5, 3.3), (86, 3.2), (84.5, 3.1), (83, 3.0), (81.5, 2.9), (80, 2.8), (78.5, 2.7), (77, 2.6), (75.5, 2.5), (74, 2.4), (72.5, 2.3), (71, 2.2), (69.5, 2.1), (68, 2.0), (66.5, 1.9), (65, 1.8), (63.5, 1.7), (62, 1.6), (60.5, 1.5), (59, 1.4), (57.5, 1.3), (56, 1.2), (54.5, 1.1), (53.0, 1.0), (51.5, 0.9), (50.1, 0.8), (50.0,0.7), (0, 0)]
  • Your lowest 2 homework grades will be dropped. Absolutely no late homework will receive credit.
  • Homework will be due on Wednesdays at midnight. The first assignment will be due January 22.
  • Project: you will write a paper as part of this course.
    • You will submit an updated to your paper with each homework assignment (so your paper grade is completely integrated with the homework grade).

SageMathCloud

  • Create a [SageMathCloud](https://cloud.sagemath.com SageMathCloud) project for this course with title "480nt-Your Name", and add me as a collaborator (type "wstein@gmail.com" into the collaborators box).

  • I will add to your project a directory called "homework" with the following subdirectories: due-01-22, due-01-29..., due-03-14

  • You will write up your homework solutions by editing documents in each folder. At the moment it is due (midnight on the given day), I will automatically collect all the homeworks. I will then grade them and the graded version will appear next to your submission in the same directory.

  • Your paper will go in a folder called "paper" in your course project.

  • I may use some amount of peer grading (if you find this unacceptable, drop the class now).

  • You can use git to obtain and update a complete copy of all lecture notes, etc., for this class. Do this in a terminal:

      # Do this once the first time to get a complete copy.
      cd ~; git clone https://github.com/williamstein/480-ent-2014
    
      # Do this any time to update your copy.
      cd ~/480-ent-2014; git pull
    

Office Hours

  • Tuesdays in Padelford C423 1-2pm
  • Just talk to me after class if possible, since I usually have nothing scheduled right after class.

Course content

  • Prime numbers
  • Integers modulo n
  • Continued fractions
  • Public key cryptography
  • Elliptic curves
  • LaTeX
  • Sage (Python)

About

Math 480; Elementary Number Theory: Primes, Congruences, and Secrets; Winter 2014

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