I understand that boundary conditions can be set, for example through the J function. Or by introducing another equation.
But here surely there are "-2" degrees of freedom, not 2 degrees of freedom, so the system seems oversaturated with constraints...
Do some equations/relations imply others?
Summary:: There seems to be a mismatch, in the "Maxwell's" equations, between the number of equations and number of variables.
I was trying to play around with the equations for Electromagnetism and noticed something unusual. When expanded, there are 8 equations, 6 unknown variables, and 4...