Write a function that returns that number of rows in a vector or matrix x
x = [1; 2; 3]
output = 3
Remove all the words that end with "ain"
Project Euler: Problem 1, Multiples of 3 and 5
Count up then down
Matlab Basics II - Velocity of a particle
Calculate volume of box
Matlab Basics - Rounding I
Matlab Basics II - Extract last 3 elements of a vector
Matlab Basics - y as a function of x
Finding an element in a vector
Matlab Basics II - Find the roots of a function
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