How we can check maxwell equations are covariant?

[sadegh4137]

every people know that covariance principle is important in physics.

before Lorentz transformations and special relativity, how we can check covariance principle about Maxwell 's equations?

 

[Dale]

Simply write them in a manifestly covariant form:
http://en.wikipedia.org/wiki/Covariant_formulation_of_classical_electromagnetism

 

[Meir Achuz]

You can't check covariance "before Lorentz transformations and special relativity".
That is why SR was proposed.