Add only the odd numbers of x
x = [1 2 3 4 5]
the positive numbers are: 1 3 5, so their sum is 9
Back to basics 25 - Valid variable names
Getting the indices from a vector
Length of a short side
Matlab Basics II - Count rows in a matrix
UICBioE240 problem 1.4
All odd - all even
Count the numbers
Odd times 3
X plus binary inverted x
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