Given a vector, find the average of even-numbered columns.
x = [ 4 6 8 9 1 2 7 ]
y = ( 6 + 9 + 2 ) / 3
Number of digits in an integer
Perfect Square or not
Flip the vector from right to left
Write a code that will follow the equation y = x * (x + x) * x.
Average of odd values
Calculate feeling temperature before climbing a mountain
Probability of red tulips (at both ends of a row)
Delete the column with all 0 !
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