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.
radius of a spherical planet
Find the sum of the elements in the "second" diagonal
Vectorize the digits of an Integer
Given a 4x4 matrix, swap the two middle columns
Sum of series I
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics II - Count rows in a matrix
Matlab Basics - Switching Assignments
Matlab Basics II - Extract last 3 elements of a vector
Matlab Basics II - Free Fall
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