# Summer Mathematics Program for High School Students, June 2006

## Notes and handouts

Square-Triangular Numbers

Eigenvalues and eigenvectors

Mathematics of Google

## Python code

td: td(n) factors n by trial division

gcd: greatest common divisor

isolve: solve ax + by = c

modpower: a^{k} mod N

growcf: growing continued fractions

Basic encryption

Checking up on the Fermat test