Use matlab or octave to code. DO NOT USE if statements, while or for loops, or reshape commands. Use only vectors, functions, matrices, or strings.

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