Needs more test cases, having arrays with more than 4 elements.
This is definitely cheating.
I couldn't resist... :o) Sorry!!!
In an act of protest, this answer includes the oxford comma. ;)
Hear, hear, the only way to prevent lexical ambiguity is the Oxford comma. As proof, I submit a friendly panda (eats, shoots and leaves) versus an unfriendly guest (eats, shoot, and leaves).
Who Has the Most Change?
Replace NaNs with the number that appears to its left in the row.
Return area of square
The sum of the numbers in the vector
Sum of the Matrix Elements
Create different color vectors.
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