Re: 水能解释一下MAXWELL理论的几个算子？# EE - 电子工程
n*d
1 楼
of course there are! Math defination are based on physics meaning.
this stuff is called field theory. How can it be without physics meaning?
Divergence:
field flux across infinitesmal closed curve. in static electrical case, it is
equal to the local charge density.
Gradient: consider a field F(x,y), Gradient(F) is the slope of F at (x,y). It
has direction. if phi is potential, Grad(phi)=field
Curl: this is useful for those kind of field whose field lines are closed. for
example: magnetic field
c
this stuff is called field theory. How can it be without physics meaning?
Divergence:
field flux across infinitesmal closed curve. in static electrical case, it is
equal to the local charge density.
Gradient: consider a field F(x,y), Gradient(F) is the slope of F at (x,y). It
has direction. if phi is potential, Grad(phi)=field
Curl: this is useful for those kind of field whose field lines are closed. for
example: magnetic field
c