- #1

cytochrome

- 166

- 3

Say you have a vector in R^2 that is defined by (0,2) so that it is pointing upward on the y-axis.

What would the coordinates of the vector with the opposite orientation be (so that the tail of the vector is at the point (0,2) and the head is at (0,0))?

How do you define vector orientation with just coordinates?