<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div> Mike,<div><br></div><div> The TS component is rapidly evolving so it is a bit hard to say exactly what is supported and how well. </div><div><br></div><div> We hope to concentrate a lot of effort on making TS more general (including some DAE support) and with better methods. </div><div><br></div><div> Your feedback on specifically what you need and how you would like to provide (write) your code would be very helpful to use as we improve/rewrite/redesign TS.</div><div><br></div><div> Yes, the limitations you point out have always been in TS, we hope to improve this. I'm sending this out to our development mailing list.</div><div><br></div><div> Barry</div><div><br><div><div>On Mar 15, 2010, at 2:00 PM, Michael E Henderson wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hi all,<br><br>I'm looking at using the TS objects, and have a couple questions, mostly <br>to verify that what I'm looking for really isn't there.<br><br>Our systems are usually written as (c(u) u )' = F(u,t). It looks like TS <br>requires that I translate this into u'=F(u,t). Is that correct? <br><br>Is there any support for DAE's? <br><br>Thanks,<br><br>Mike<br>------------------------------------------------------------------------------------------------------------------------------------<br>Mathematical Sciences, TJ Watson Research Center<br><a href="mailto:mhender@watson.ibm.com">mhender@watson.ibm.com</a><br><a href="http://www.research.ibm.com/people/h/henderson/">http://www.research.ibm.com/people/h/henderson/</a><br>http://multifario.sourceforge.net/<br><br> <br><font size="2" face="sans-serif">Hi all,</font> <br> <br><font size="2" face="sans-serif">I'm looking at using the TS objects, and have a couple questions, mostly to verify that what I'm looking for really isn't there.</font> <br> <br><font size="2" face="sans-serif">Our systems are usually written as (c(u) u )' = F(u,t). It looks like TS requires that I translate this into u'=F(u,t). Is that correct? </font> <br> <br><font size="2" face="sans-serif">Is there any support for DAE's? <br> </font> <br><font size="2" face="sans-serif">Thanks,</font> <br> <br><font size="2" face="sans-serif">Mike</font> <br><font size="2" face="sans-serif">------------------------------------------------------------------------------------------------------------------------------------<br> Mathematical Sciences, TJ Watson Research Center<br> mhender@watson.ibm.com<br> </font><a href="http://www.research.ibm.com/people/h/henderson/"><font size="2" face="sans-serif">http://www.research.ibm.com/people/h/henderson/</font></a><font size="2" face="sans-serif"><br> </font><a href="http://multifario.sourceforge.net/"><font size="2" face="sans-serif">http://multifario.sourceforge.net/</font></a><font size="2" face="sans-serif"><br> </font></blockquote></div><br></div></body></html>