ZE=5><SPAN LANG="en-US"><SPAN STYLE="font-style: normal">being given, based on two linear multistep methods. For stiff problems it uses the backward differentiation method, and for nonstiff problems the Adams-Bashforth-Moulton method. </SPAN></SPAN></FONT>

       <FONT SIZE=4 STYLE="font-size: 16pt"><SPAN LANG="en-US"><SPAN STYLE="font-style: normal"><U>Procedure  parameters:</U></SPAN></SPAN></FONT>
<SPAN STYLE="text-decoration: none">                        </SPAN><SPAN STYLE="text-decoration: none"><FON