Write a function that returns that number of rows in a vector or matrix x
x = [1; 2; 3]
output = 3
Project Euler: Problem 7, Nth prime
Return unique values without sorting
Deleting an element in a matrix
Matlab Basics - Logical Tests I
Matlab Basics II - Create a vector with a repeated entry
Matlab Basics II - squares
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics - Pick out parts of a vector
Matlab Basics II - 3 Dimensional Arrays
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