very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Encode Roman Numerals
Increment a number, given its digits
Replace Vector Elements
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Remove the Zero
Fast 1-D Convolution (same shape)
Toeplitize a matrix
Fast 1-D Convolution (full shape)
String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values
"Cody" * 5 == "CodyCodyCodyCodyCody"
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