Given certain vector, sum of the input vector, get the sum of 2 adjacent numbers in the input, and sum of the output vector (which is the sum of the 2 adjacent nos)
Sum sum sum :)
Tell me the slope
sum of non-primes
Given a 4x4 matrix, swap the two middle columns
Calculate area of sector
Freebies anyone? No!!!!
Convert radians to degrees
Refresh your system of equations
Rotate matrix by -90 degrees
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