Los Angeles Math Circle

1/15 -- LAMC Beginners: Cryptoclub I

In the first session of the new year, we'll start exploring the mathematics of making (and breaking!) secret codes. UPDATE 01/15/2011: For help with solving simple substitution ciphers like the last one on this handout--for example, a list of letter frequencies in English text (and more)--see the Frequency Analysis entry on Wikipedia: http://en.wikipedia.org/wiki/Frequency_analysis.