<html> <head> <style> .hmmessage P { margin:0px; padding:0px } body.hmmessage { font-size: 10pt; font-family:Verdana } </style> </head> <body class='hmmessage'> Hi! I am Renato from Brazil. I am studying the 'How to Design Programs'.<br>In the Section 14  more specifically in the exercise 14.2.2 I have a doubt despite my tests are all passing.<br>While searching for a element on the binary tree, using the function Boolean?, my recursive function (search-bt) does one more<br>search than it should. (lines 49 - 54) Is there a better way???<br><br>Thanks!<br>Dutra Luciano, Renato. <br /><hr />Veja mapas e encontre as melhores rotas para fugir do trânsito com o Live Search Maps! <a href='http://www.livemaps.com.br/index.aspx?tr=true' target='_new'>Experimente já!</a></body> </html>