Given a vector, find the average of even-numbered columns.
x = [ 4 6 8 9 1 2 7 ]
y = ( 6 + 9 + 2 ) / 3
Create a square matrix of multiples
Add two numbers
Sum of the Matrix Elements
Calculate square and cube of number
Calculate feeling temperature before climbing a mountain
Average of odd values
Delete the column with all 0 in the TABLE
Delete the column with all 0 !
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