<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">
<div><br class="webkit-block-placeholder"></div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Lucida Grande" size="3" style="font: 12.0px Lucida Grande">So you're a student and you need help again. Where are you going to school? -- Matthias</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><br class="webkit-block-placeholder"></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><br></div></div><br><div><div>On Mar 6, 2008, at 7:28 AM, james firman wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">sir Good Day :<br><br>PLT Schemes<br>i used this utility functions i used it to manipulate the stream such as map and filter.<br><br>> ( define (inc x) (+ 1 x))<br>>(define int (make-stream 0 inc )<br>>(define sqr x ))<br>> (stream-print (stream-map int sqr) 10)<br> ( 0 1 4 9 16 25 36 49 64 81 ) ...... output<br>>( stream-print (stream-filter int odd?) 15 )<br>( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29)<br><br>i have to used the utility functions below <br><br>1. (stream-map stream op)<br>2.(stream-filter stream ok? )<br><br>" i used the accessor stream-current and stream-next to access the succeeding stream.<br><br><br>Thanks a lot i hope you give us ideas on this :)<br><br>More Power ...... <br><div> <br class="khtml-block-placeholder"></div><hr size="1">Never miss a thing. <a href="http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs"> Make Yahoo your homepage.</a><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_________________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><span class="Apple-converted-space"> </span>For list-related administrative tasks:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><span class="Apple-converted-space"> </span><a href="http://list.cs.brown.edu/mailman/listinfo/plt-scheme">http://list.cs.brown.edu/mailman/listinfo/plt-scheme</a></div> </blockquote></div><br></body></html>