Deriving Poynting Vector from EM Waves

[tmoan]

can anyone help me derive the poynting vector from energy density of electromagnetic waves?
and how we obtain average value <S>
thanks

 

[Andy Resnick]

The standard derivation is available in many places, such as Jackson's book. What have you tried so far?

 

[tmoan]

i need the way to derive poynting vector and the average value from energy density of electromagnetic waves on the internet so i can copy it on power point
coz i don want to type them one by one on word and then copy paste
also any site that has all those optics formulas derived on stuff like radiation
electric dipole moment and creation of electromagnetic waves in antennas
you see my problem is wikipedia and sites like that has everything in them.
i didn't use to browse a lot of sites before. so i could use some help thanks

 

[tmoan]

btw i have books where i can read the derivations i don't need explanations i understand the concept of all this very clearly
but as i mentioned before just finding the proper site to browse takes a lot of my time