Covering some basic topics I haven't seen elsewhere on Cody.
Remove the singleton dimensions from the input variable (e.g. if size(input)==[2 3 1 4], size(output)==[2 3 4])
Get the length of a given vector
Replace Vector Elements
Output any real number that is neither positive nor negative
Sum the numbers on the main diagonal
Beginner's Problem - Squaring
Valid Chess Moves
7 segment LED display
Toolbox check part 3
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