** **

**Instructor: **Brian
Rider, Wachman
608, E-mail: * firstname.lastname@temple.edu *

**Class** meets Tuesdays and Thursdays

**Office Hours** are Mondays 12:00-1:00 and
Thursdays 11:00 - 1:00.

**TA**: Khanh Le (Wachman 519) will hold an office hour on Tuesdays 11:00-12:00.

**The book** is "Elementary Number Theory: Primes, Congruences, and
Secrets", by William Stein.
This is available as a free download!

**Rough description: ** An introduction to Number Theory: properties of
prime numbers, ring of integers modulo n, continued fractions, quadratic
reciprocity, and applications to cryptography.
Hopefully we'll cover the majority of the book.

The book's subtitle is "a computational approach", and we will make use (on problem sets, etc.) of the open source mathematical software Sage. See this site from which you can either download Sage or access it directly online.

**Schedule** of topis (i.e., where we are in the text) which I'll update
as we go can be found here
here.

**Your grade** will be comprised of (more or less) weekly problem sets (20%),
two in-class tests (25%, tentaively scheduled for February 21 and April 11), and a
final (30%, 8:00-10:00 on May 4th).

** News flashes**

*
***Due to the snow that wasn't: Test 1 moved to 2/23****

*
***Test 2 moved up to April 6****

**Problem sets** will be posted below this line, due Thursdays.

** PS3 ** due 2/9 (extended to 2/16).