Write a script that returns the absolute value of the elements in x
e.g. x = [-1 -2 -3 -4] --> y = [1 2 3 4]
'Write a script'. Actually, they're functions.
Length of the hypotenuse
Matlab Basics II - Create a vector with a repeated entry
Matlab Basics - Switching Assignments
Matlab Basics - Rounding II
Matlab Basics - Create a row vector
Replace every 3rd element in a vector with 4
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