ITEC 380 2009fall ibarland

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lect01c
Scheme intro: functions

  Review: uses prefix notation,
   exact rationals [compare scheme vs Java vs ...]
Let's write some functions:



I. define
(define a 2)
(define b 8)
(define c 42)
; quadratic expression

II. define a function
(define (root1 a b c)
  ...)

III. practice: string functions
blend : string, string -> string

IIIa: expected results
IIIb: write
IIIc: expected results w/ 'string=?'; expected results w/ check-expect

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©2009, Ian Barland, Radford University Last modified 2009.Sep.07 (Mon)

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