I am the new maintainer of the R wrapper nloptr that makes NLopt available to the R community. On some OS configuration, the compiler throws the following warning ...

I've noticed that the SLSQP algorithm will sometimes return all NaNs for the parameters. Do you know if this is documented/expected behavior? This usually happens when I put a small penalty on the ...

Abstract: In road networks, mobile users (including vehicles and pedestrians) need to know the proximity relationship with other users in real time, referred to as the problem of proximity detection ...