- #1
Derivator
- 149
- 0
Hi,
why can I raise and lower indices of a partial derivative with the help of the metric tensor?
E.g., wh is the following possible?
([tex]\phi[/tex] is a scalar function)
[tex]\partial^\mu \phi = g^{\mu\nu}\partial_\nu \phi[/tex]
--
derivator
why can I raise and lower indices of a partial derivative with the help of the metric tensor?
E.g., wh is the following possible?
([tex]\phi[/tex] is a scalar function)
[tex]\partial^\mu \phi = g^{\mu\nu}\partial_\nu \phi[/tex]
--
derivator