Hello all, <br>When I define this: <br><br>;; distance-to-0 : posn -> number<br>;; to compute the distance of a-posn to the origin <br>(define (distance-to-0 a-posn) ...)<br><br><br>I get this error messege on clicking run;
<br><br>...: name is not defined, not an argument, and not a primitive name.<br><br>Can someone please tell me what I am doing wrong? <br>Thanx.<br clear="all"><br>-- <br>Live, Learn, Love!<br>Patrick Amkayah.