I have vector
W = [1, 8, 4, 7, 10, 1, 6, 3]
I need to multiply it by number, but command 2*W gives just concatenated vector by itself
[1, 8, 4, 7, 10, 1, 6, 3, 1, 8, 4, 7, 10, 1, 6, 3]
I dont need it, I need multiply all elements of vector to number
