MATH 470 - Algebra for Teachers
Spring Semester 2009

Dr. James A. Sellers

Links of Possible Interest
The list of links below is in no way exhaustive.  If you would like to suggest a site to add to this list, please feel free to email the link to me. 

History of mathematics

• http://www-groups.dcs.st-and.ac.uk/~history/

Sloane's Online Encyclopedia of Integer Sequences

• http://www.research.att.com/~njas/sequences/

Software Sites

• http://pari.math.u-bordeaux.fr/   (PARI-GP)
• http://math.exeter.edu/rparris/default.html   (Peanut Software)
• http://www.coolmath.com/graphit/   (An online graphing calculator)
• http://www.univie.ac.at/future.media/moe/onlinewerkzeuge.html   (Multiple online tools)
• http://archives.math.utk.edu/   (Mathematics Archives)
• http://www.ams.org/mathweb/mi-software.html   (AMS Compendium)
• http://www.mersenne.org/source.htm (GIMPS source code)

Prime Numbers

• http://primes.utm.edu/ 
• http://www.mersenne.org/prime.htm

Sieve of Eratosthenes

• http://www.faust.fr.bw.schule.de/mhb/eratosiv.htm

Euclidean Algorithm

• http://www.math.umn.edu/~garrett/crypto/a01/Euclid.html
• http://www.math.sc.edu/~sumner/numbertheory/euclidean/euclidean.html

Factorization/Sum of Divisors/Number of Divisors

• http://www.alpertron.com.ar/ECM.HTM

Perfect Numbers

• http://mathworld.wolfram.com/PerfectNumber.html
• http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Perfect_numbers.html

Quadratic Congruence Calculator

• http://www.alpertron.com.ar/QUADMOD.HTM

Sums of Squares

• http://www.alpertron.com.ar/FSQUARES.HTM

Pythagorean Theorem

• http://www.cut-the-knot.org/pythagoras/index.shtml
• http://www.saltire.com/applets/pythag/incircle.html

RSA Cryptography

• http://www.rsasecurity.com/rsalabs/
• http://cisnet.baruch.cuny.edu/holowczak/classes/9444/rsademo/
• http://islab.oregonstate.edu/koc/ece575/02Project/Mor/