var A = Vector(1, 2, 3, 4)
var B = Vector(9, 8, 7, 6)
say (A + B) # vector entrywise addition
say (A - B) # vector entrywise subtraction
say (A * B) # cross product
say (A + 42) # vector-scalar addition
say (A - 42) # vector-scalar subtraction
say (A * 42) # vector-scalar multiplication
say (A / 42) # vector-scalar division
say A.sum # vector sum
say A.prod # vector product
say A.norm # normalized value: sum of squares
say A.manhattan_norm # Manhattan normalized: sum of absolute values
say A.dist(B) # distance between two vectors
say A.dist_norm(B) # distance squared between two vectors
say A.manhattan_dist(B) # Manhattan distance between two vectors
say A.chebyshev_dist(B) # Chebyshev distance between two vectors