Cryptography!

What a wonder Cryptography. Today in Mathland we learned the Art of Cryptography. It is a simple idea, but an elaborate process. First you take a word or message, for example Cheese. Then you pick numbers that will symbolize each letter. Then, you create an encryption matrix, which just has to be a matrix that has an inverse. Next, you make 1x3 matrices out of your word or phrase. So, if we are using cheese, let's let 3 represent c, 8 represent h, 5 represent the e's, and 19 represent s. So you would take the matrix (3 8 5) and multiply it by the encryption matrix you chose, and your message is encrypted. To decode the message simply take the 1x3 matrices and multiply them by the inverse matrix of your encryption matrix.