Will not work for x = [1 3 5 7] or x = [0:5:30], for example.
Alphabetize by last name
Check if sorted
Get the length of a given vector
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Add two numbers
How many jokers?
Compress strings (not springs)
count any radix?
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