Write a function that returns that number of rows in a vector or matrix x
x = [1; 2; 3]
output = 3
Most nonzero elements in row
Sums with Excluded Digits
Return area of square
Is this triangle right-angled?
Find the area of a triangle
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics - Rounding II
Matlab Basics II - Create a vector with a repeated entry
Matlab Basics II - Log and natural log
Replace every 3rd element in a vector with 4
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