Implement a ROT13 cipher
Get the area codes from a list of phone numbers
give nth decimal place of pi
Will there be a new leader?
Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Sort a list of complex numbers based on far they are from the origin.
Swap the first and last columns
Find all elements less than 0 or greater than 10 and replace them with NaN
Select every other element of a vector
Find the two most distant points
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