Write a function that returns that number of rows in a vector or matrix x
x = [1; 2; 3]
output = 3
Remove any row in which a NaN appears
Which doors are open?
Swap the input arguments
Back to basics 12 - Input Arguments
Getting the absolute index from a matrix
Matlab Basics II - Determine if an array has a 3rd dimension
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics II - Velocity of a particle
Matlab Basics II - Unit Conversion
Matlab Basics II - Extract last 3 elements of a vector
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