I found a cool html equation editor online based on a superset of the LaTeX markup language that allows me to code some important equations you should know about. You can find the site Here . You can also click on any equation to see its LaTeX source.
Fourier Expansion of a periodic function in three dimensions
Maxwell’s equations of electricity and magnetism
These bad boys will solve anything to to with E and M; including optics.
|Gauss’ Law for Magnetism
|Maxwell – Faraday Equation