<html><head><base href="x-msg://1108/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>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: </div><div><br></div><div> (define (f x) ....)</div><div><br></div><div>To make sure you can evaluate a definitions area that contains such templates, say </div><div><br></div><div><div>(define (f x)</div><div>  ....)</div><div><br></div><div>(check-expect (g 1) 1)</div><div>(define (g y)</div><div>  y)</div></div><div><br></div><div>the teaching languages assign meaning to dots. The word 'variable' is somewhat unfortunate and I should fix this for  a future release. </div><div><br></div><br><div><div>On Aug 29, 2012, at 8:58 AM, Greg Graham wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple"><div class="WordSection1" style="page: WordSection1; "><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">I am working the HtDP, and I have a question about Beginning Student Language description on<a href="http://docs.racket-lang.org/htdp-langs/beginner.html%20.%20Section%201.2" style="color: blue; text-decoration: underline; ">http://docs.racket-lang.org/htdp-langs/beginner.html . Section 1.2</a><span class="Apple-converted-space"> </span>describes “Template Variables”, which are a series of dots. What are they used for?<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">-Greg<o:p></o:p></div><div style="margin-top: 0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; "><o:p> </o:p></div></div>____________________<br> Racket Users list:<br> <a href="http://lists.racket-lang.org/users" style="color: blue; text-decoration: underline; ">http://lists.racket-lang.org/users</a><br></div></blockquote></div><br></body></html>