1st) Can you think in the reciprocal of the memristance? Can you give me a theoretical definition (or just a notion) for it and a term/jargon too? Dewey Larson proposed the inverse for all electrical elements, including the inductance, that he called of "reluctance" and defined: "reluctance, the resistance of a magnetic circuit to the establishment of a magnetic flux by a magnetomotive force". So, why no philosophize about the memristance too!? I'd like of hear your opinion. 2nd) How would be the equation of the equivalent memristance in series and in parallel? 3rd) How would be the ODE for a RLCM circuit?