Co-energy: definition
Co-energy: definition
(OP)
Can someone give a general definition of co-energy? There was a post here but about the particular case of an electromagnetics system, same on wikipedia (but even there not the general case(!)) I'm looking for a general definition (well, the case of the hamiltonian of a mass-spring system exactly)
Thanks in advanced
Thanks in advanced





RE: Co-energy: definition
https://en.wikipedia.org/wiki/Coenergy
It can be used to predict force and torque in non-linear electromagnetic system.
I think the analogous approach in mechanics is LaGrange equation.
https://en.wikipedia.org/wiki/Lagrangian_mechanics
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(2B)+(2B)' ?