very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
surface of a spherical planet
Return unique values without sorting
Fix the last element of a cell array
MATLAB Basic: rounding
Apply Function to Each Field of a Structure Array: Part 1
Toeplitize a matrix
String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values
Histogram of histogram
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