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
Find the alphabetic word product
Is A the inverse of B?
Compute a dot product of two vectors x and y
Number of digits in an integer
construct matrix with identical rows
Second smallest number
X plus binary inverted x
Odd times 3
Add the even numbers
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