very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Find the peak 3n+1 sequence value
Test if a Number is a Palindrome without using any String Operations
Find the maximum number of decimal places in a set of numbers
Replicate elements in vectors
Number of digits in an integer
Combine the first and last names
Toeplitize a matrix
Cody meets Xiangqi: foresee the unseen (Part 1)
Hankelize a matrix
String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array
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