Write a function that returns that number of rows in a vector or matrix x
x = [1; 2; 3]
output = 3
Project Euler: Problem 1, Multiples of 3 and 5
Generate pi using logarithm
07 - Common functions and indexing 5
Product of elements in row
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics - Logical Tests I
Matlab Basics II - Free Fall
Matlab Basics II - Operations and Matrix Dimensions
Matlab Basics - Absolute Value
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