<br><font size=2 face="sans-serif">Hi,</font>
<br><font size=2 face="sans-serif">I have another question regarding IPOPT. </font>
<br><font size=2 face="sans-serif">How does it handle fixed variables, i.e. variables with equal upper and lower bound. </font>
<br><font size=2 face="sans-serif">We are currently frequently using this feature when performing what-if analysis. </font>
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<br><font size=2 face="sans-serif">Best Regards </font>
<br><font size=2 face="sans-serif">Jens Pettersson</font>