Generate the first n terms of a periodic sequence defined as
f(x) = 0, 2, 0, -2, 0, 2, 0, -2, ..., for x = 1, 2, 3, 4, 5, 6, 7, 8, ...
Omit columns averages from a matrix
Find the sum of the elements in the "second" diagonal
Output any real number that is neither positive nor negative
Basic arrays operations.
Dimensions of a rectangle
String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values
Spot the First Occurrence of 5
Hankelize a matrix
"Cody" * 5 == "CodyCodyCodyCodyCody"
String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array
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