Find sum of negative elements in row.
Example x=[1 -5 3 4 -6 6 7 8 9 10]
result = -11
Output any real number that is neither positive nor negative
Calculate distance travelled when given radius and rotations
find the surface area of a cube
Replace every 3rd element in a vector with 4
Rotate Matrix @180 degree
Find product of eigenvalues of n*n magic matrix.
Select primes from the matrix.
Find the sines of an isosceles triangle when given its area and height
Find cosine between two given vectors u and v.
Find scalar product of two polynomials a and b, given as vector array.
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