#lang racket

#lang racket

; (isBetween a b c) --> boolean
;   a : number
;   b : number
;   c : number
;   Returns true if a > b and a < c,
;   false in all other cases.
(define isBetween
  (lambda (a b c)
    (< b a c)))

(display "isBetween tests\n")
(display "#t: ")
(isBetween 5 4 6)
(display "#f: ")
(isBetween 3 7 9)
(display "#f: ")
(isBetween 4 4 9)

; (pythTriple a b c) --> boolean
;   a : positive number
;   b : positive number
;   c : positive number
;
;   Returns true if a, b, and c could represent
;   the sides of a right triangle, where c is the
;   hypotenuse.
;   False otherwise
;   a^2 + b^2 = c^2
(define pythTriple
  (lambda (a b c)
    (= (* c c)
       (+ (* a a) (* b b)))))
(display "pythTriple tests\n")
(display "#t: ")
(pythTriple 3 4 5)
(display "#f: ")
(pythTriple 6 7 10)
(display "#t: ")
(pythTriple 4  3 5)
(display "#f: ")
(pythTriple 5 3 4)

; (pythTripl2e a b c) --> boolean
;   a : positive number
;   b : positive number
;   c : positive number
;
;   Returns true if a, b, and c could represent
;   the sides of a right triangle, where any side
;   could be the hypotenuse
;   False otherwise
;   a^2 + b^2 = c^2
(define pythTriple2
  (lambda (a b c)
    (or
     (pythTriple a b c)
     (pythTriple a c b)
     (pythTriple b c a))))
(display "pythTriple2 tests\n")
(display "#t: ")
(pythTriple2 3 4 5)
(display "#f: ")
(pythTriple2 6 7 10)
(display "#t: ")
(pythTriple2 4  3 5)
(display "#t: ")
(pythTriple2 5 3 4)
(display "#t: ")
(pythTriple2 4 5 3)

; (exor p q) --> boolean
;   p : boolean
;   q : boolean7
;
;   Returns true if a, b, and c could represent
;   the sides of a right triangle, where c is the
;   hypotenuse.
;   False otherwise
;   a^2 + b^2 = c^2
(define exor
  (lambda (p q)
    (and
     (or p q)
     (not (and p q)))))
(display "exor tests\n")
(display "#f: ")
(exor #true #true)
(display "#t: ")
(exor #true #false)
(display "#t: ")
(exor #false #true)
(display "#f: ")
(exor #false #false)
(display "#t: ")
(exor (> 3 4) (<= 5 6))

#<syntax:/home/pasterack/pasterack/tmp/36679/36679code.scrbl:5:0 "#lang racket">:3:0: read-syntax: `#lang` not enabled
  possible reason: not allowed again inside a module that already starts `#lang`, or not enabled for interactive evaluation
  context...:
   /home/pasterack/racket88/collects/syntax/module-reader.rkt:214:17: body
   /home/pasterack/racket88/collects/syntax/module-reader.rkt:211:2: wrap-internal
   /home/pasterack/racket88/collects/racket/../syntax/module-reader.rkt:76:9: wrap-internal/wrapper
   /home/pasterack/racket88/share/pkgs/scribble-lib/scribble/private/manual-code.rkt:138:19: loop
   /home/pasterack/racket88/share/pkgs/scribble-lib/scribble/private/manual-code.rkt:112:0: get-tokens
   /home/pasterack/racket88/share/pkgs/scribble-lib/scribble/private/manual-code.rkt:56:0: typeset-code
   body of "/home/pasterack/pasterack/tmp/36679/36679code.scrbl"
   .../private/map.rkt:40:19: loop
   .../racket/cmdline.rkt:191:51
   body of "/home/pasterack/racket88/share/pkgs/scribble-lib/scribble/run.rkt"