Linear Algebra and Basic Cryptography

I look at a fun way to encode secret messages using matrix multiplication - the Hill Cipher. Secret message: row 1: 8, 21, 14, 1, 6, 16, 14, 16, 14, 14, 19, 10 row 2: 3, 12, 16, 14, 9, 13, 4, 26, 18, 11, 4, 23 Encoding matrix: row 1: 7, 1 row 2: 8, 1 Make sure you take the result modulo 29 when you decode the message! Free matrix inversion can be found at this site: https://matrix.reshish.com/inverse.php Sounds by Zapsplat