; CS 42 Homework 2, Problem 1: Unicalc
; Author(s): [your name here]
; Time spent: [enter the time spent on this homework here]

; Additional comments (optional):
;

; Again you need the tester
(load "tester.rkt")
; Be sure to download the unicalc database file
(load "unicalc-db.rkt")

;; Data abstraction for a quantity list
; Function: make-QL
; Input:
;    quant - a number
;    num - a list of symbols representing the units in the numerator
;    den - a list of symbols representing the units in the denominator
; Output:
;    a representation of a quantity list
(define (make-QL quant num den)
  (list quant num den))

; Accessor functions for our QL abstraction
(define get-quant first)

(define get-num second)

(define get-den third)

;; Add your unicalc functions below.

;; Load and run the tests
(load "unicalc-tests.rkt")