MATLAB

without using the built in caesar function.

4. (Caesar Cipher) For this problem, you will produce a proper Caesar Cipher that always ensures the message remains alphabetic. Hint: First translate the message so that the character 'A' corresponds to 0 and don't forget to consider the mod function. mod_caesar Function: Input variables: a string representing the message to be encoded a scalar representing the key (the amount to shift by) Output variables: a string representing the encoded message A possible sample case is: >> ciphertext mod_caesar('MATHRULES', 6) ciphertext = SGZNXARKY