[racket] Template Variables

In part I, HtDP introduces the idea of a template (see sections whose title is Designing Foo). In its most basic form, a template looks like this: 

 (define (f x) ....)

To make sure you can evaluate a definitions area that contains such templates, say 

(define (f x)
  ....)

(check-expect (g 1) 1)
(define (g y)
  y)

the teaching languages assign meaning to dots. The word 'variable' is somewhat unfortunate and I should fix this for  a future release. 


On Aug 29, 2012, at 8:58 AM, Greg Graham wrote:

> I am working the HtDP, and I have a question about Beginning Student Language description onhttp://docs.racket-lang.org/htdp-langs/beginner.html . Section 1.2 describes “Template Variables”, which are a series of dots. What are they used for?
>  
> -Greg
>  
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