> A two-dimensinal vector v running from the origin to a point can be represented as a pair consisting of an x-coordinate and a y-coordinate.

The above vector implementation has a constructor that takes a number and what I assume is a xy pair, which is probably a mistake. If the second parameter is a number than I suppose the constructor always produces xy pairs of the form (0,y)

Should be

;; Book said pair of x y but I like using lists where I can
(define(make-vect x y)(list x y));; Constructor
(define(make-segment start end)(list start end));; Selectors
(define(start-segment segment)(car segment))(define(end-segment segment)(cadr segment))

electraRod

jirf

From ex2.6

> A two-dimensinal vector v running from the origin to a point can be represented as a pair consisting of an x-coordinate and a y-coordinate.

The above vector implementation has a constructor that takes a number and what I assume is a xy pair, which is probably a mistake. If the second parameter is a number than I suppose the constructor always produces xy pairs of the form (0,y)

Should be