cyclone
- Author:
- Arthur Lee
Describe the position of a point in the coordinate plane when that point is moving steadily on a line.
In this example, C is a cyclone moving from A to B in 1 day.
Let d be the number of days (which can be a fraction).
Position of C can be described in terms of d and the coordinates of A and B.
(In the HK DSE curriculum, this corresponds to the formula for internal point of division. More generally, this can be a vector representation of straight line.)