Write a function that returns that number of rows in a vector or matrix x
x = [1; 2; 3]
output = 3
07 - Common functions and indexing 2
Min of a Matrix
Swap two numbers
Matlab Basics - y as a function of x
Matlab Basics - Convert a row vector to a column vector
Matlab Basics - Rounding I
Matlab Basics II - Create a vector with a repeated entry
Matlab Basics II - Find the roots of a function
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