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<p>Dear all,</p>
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<p>I am a biginner taking IPOPT for my research. I am going to integrate IPOPT with a hybrid DAE solver. I have not used any ralaxation method for mode transitions and as I understand, IPOPT receives instantaneous mode transitions from DAE solver that may cause
problem in gradient computations. I am woundering if IPOPT can handle such a problem or I have to employ a relaxation method.</p>
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<p>Thanks in advance,</p>
<p>Arash</p>
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