Recent content by baffledboy

okay, so I've got \epsilon_{ade}\epsilon_{ebc}\partial_{d}A_{b}B_{c} = \left(\delta_{ab}\delta_{dc}-\delta_{ac}\delta_{db}\right)\partial_{d}A_{b}B_{c} = \partial_{d}A_{a}B_{d}-\partial_{d}A_{d}B_{a} = \vec{A}\left(\vec{\nabla}\bullet\vec{B}\right)-\left(\vec{\nabla}\bullet\vec{A}\right)\vec{B}...

Thanks for your response. I'm not sure what system the professor is using. He doesn't use superscripts at all and uses commas for derivatives. He didn't give a name for it other than "index notation" though. is it okay to just change \epsilon_{ade}\partial_{d}\epsilon_{ebc}A_{b}B_{c} to...

Homework Statement Using index notation to prove \vec{\nabla}\times\left(\vec{A}\times\vec{B}\right) = \left(\vec{B}\bullet\vec{\nabla}\right)\vec{A} - \left(\vec{A}\bullet\vec{\nabla}\right)\vec{B} + \vec{A}\left(\vec{\nabla}\bullet\vec{B}\right) -...