In a array x, count the number of times the number n appears in x.
for example: x = [1 2 3 4 3 2 1 2] and n = 2 the answer should be 3, because 2 appears 3 times in x
Check if number exists in vector
Let's see how peculiar we can get
Cumulative product of a vector
Matlab Basics II - Extract last 3 elements of a vector
Magnitude of a vector
All odd - all even
Odd times 3
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