Write a function that takes matrix A, and squares each element in the matrix
A = [1 2 3]
output = [1 4 9]
Bottles of beer
Sum the numbers on the main diagonal
Length of the hypotenuse
Matlab Basics - y as a function of x
Matlab Basics II - Intervals
Matlab Basics - Rounding III
Matlab Basics II - Extract last 3 elements of a vector
Replace every 3rd element in a vector with 4
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