Olá Walmes,<br><br>Pois é, não tinha notado não. Me desculpe a desatenção, você já havia dado a resposta.<br><br>legend(locator(1),bty=&quot;n&quot;,expression(L[i]==L[&quot;\U221E&quot;]%*%&quot;[&quot;*1-e^{-k%*%(t-t[0])}*&quot;]&quot;),cex=1.5)<br>
<br>fez o que eu queria.<br><br>Muito obrigado e boa noite.<br><br>Abraços<br><br>Antônio<br><br><div class="gmail_quote">Em 6 de junho de 2011 23:49, Walmes Zeviani <span dir="ltr">&lt;<a href="mailto:walmeszeviani@gmail.com">walmeszeviani@gmail.com</a>&gt;</span> escreveu:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><font face="trebuchet ms,sans-serif">Antônio,<br><br>Note no post que enviei que você tem que usar o asterisco,<br>
<br><span style="font-family: courier new,monospace;">&gt; plot(0, main=expression(&quot;[&quot;*alpha*&quot;]&quot;)) # certo</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">&gt; plot(0, main=expression(&quot;[&quot;alpha&quot;]&quot;))   # errado</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">Erro: unexpected symbol in &quot;plot(0, main=expression(&quot;[&quot;alpha&quot;</span><br style="font-family: courier new,monospace;">

<br>À disposição.<br><font color="#888888">Walmes.<br><br clear="all"></font></font><div><div></div><div class="h5"><span style="font-family: trebuchet ms,sans-serif;">==========================================================================</span><br style="font-family: trebuchet ms,sans-serif;">

<span style="font-family: trebuchet ms,sans-serif;">Walmes Marques Zeviani</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">LEG (Laboratório de Estatística e Geoinformação, 25.450418 S, 49.231759 W)</span><br style="font-family: trebuchet ms,sans-serif;">

<span style="font-family: trebuchet ms,sans-serif;">Departamento de Estatística - Universidade Federal do Paraná</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">fone: (+55) 41 3361 3573</span><br style="font-family: trebuchet ms,sans-serif;">

<span style="font-family: trebuchet ms,sans-serif;">VoIP: (3361 3600) 1053 1173</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">e-mail: <a href="mailto:walmes@ufpr.br" target="_blank">walmes@ufpr.br</a></span><br style="font-family: trebuchet ms,sans-serif;">

<span style="font-family: trebuchet ms,sans-serif;">twitter: @walmeszeviani</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">homepage: <a href="http://www.leg.ufpr.br/%7Ewalmes" target="_blank">http://www.leg.ufpr.br/~walmes</a></span><br style="font-family: trebuchet ms,sans-serif;">

<span style="font-family: trebuchet ms,sans-serif;">linux user number: 531218</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">==========================================================================</span><br>

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<br></blockquote></div><br><br clear="all"><br>-- <br>Antônio Olinto Ávila da Silva<div>Biólogo / Oceanógrafo</div><div>Instituto de Pesca (Fisheries Institute)</div><div>São Paulo, Brasil</div><br>