very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
Find the dimensions of a matrix
Divisible by 4
0, 2, 0, -2, 0, 2, 0, -2, ...
"Cody" * 5 == "CodyCodyCodyCodyCody"
Group-wise Euclidean distance
The Top 5 Primes
Words Count: A Cell Array Approach
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