Hi, with the March 7th snapshot (on Windows) I'm getting a weird error saying that the invpd() function doesn't support complex arguments. Fair enough, but this code has never used complex numbers. Debugging shows that a certain input matrix indeed is printed by gretl as a complex matrix of zeros: Pmat (2 x 2)  0.00000 - 0.00000i   0.00000 - 0.00000i  0.00000 - 0.00000i   0.00000 - 0.00000i But again, I'm not working with complex numbers here. This matrix should be real, and I'm not using any of the new gretl functions for complex numbers. Could this be some kind of underflow problem where suddenly gretl interprets stuff as complex?

On Thu, 11 Mar 2021, Sven Schreiber wrote: > with the March 7th snapshot (on Windows) I'm getting a weird error > saying that the invpd() function doesn't support complex arguments. Fair > enough, but this code has never used complex numbers. Debugging shows > that a certain input matrix indeed is printed by gretl as a complex > matrix of zeros: > > Pmat (2 x 2) > >  0.00000 - 0.00000i   0.00000 - 0.00000i >  0.00000 - 0.00000i   0.00000 - 0.00000i > > But again, I'm not working with complex numbers here. This matrix should > be real, and I'm not using any of the new gretl functions for complex > numbers. Could this be some kind of underflow problem where suddenly > gretl interprets stuff as complex? How was this matrix generated? What does mwrite() output look like?