When you fill the column, start over in the second column. Start with the first number in the upper left and move down the first column until you have 3 rows. Now put these numbers into a matrix B that will have 3 rows. Start by translating the message into numbers using the correspondence above. Suppose we want to encode the message “SECRET CODE”. We will use the matrix A below as the encoding matrix for our message.Įnter the encoding matrix A in your spreadsheet and label it. Below is a table of each letter and its corresponding number. Then, we could translate any verbal message into a string of numbers from 0 to 26. To begin with, we could assign the numbers 1-26 to the letters of the alphabet and assign the number 0 to a space between words. Matrices can be used to encode and decode messages.
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