<div dir="ltr"><div dir="ltr"><div>Hi.</div><div><br></div><div>How to use the derivative check with the C++ interface?</div><div><br></div><div>The documentation of the interface seems to not mention that:</div><div><a href="https://www.coin-or.org/Ipopt/documentation/node23.html">https://www.coin-or.org/Ipopt/documentation/node23.html</a></div><div><br></div><div>Thank you.<br></div></div></div>