Feynman path integral course online There are a lot of books dealing with Feynman path integrals. Are there any online courses introducing Feynman path integrals and their applications?
 A: http://pirsa.org/C14034
I have gone through these lectures and enjoyed them.
The layout of the course is pretty much this:


*

*Construction of Q.M. Path Integral

*Euclidean Path Integral, Connection with S.M.

*Path Integral of a Scalar Field

*Feynman Rules resulting from the Path Integral treatment

*Generating Functionals / 1-loop Effective Actions

*Renormalization of Scalar Theory

*Grassmann Calculus & Fermionic Path Integrals

*Non Abelian Gauge Theory

*Gauge Fixing the Path Integral, Faddeev-Popov Determinant & Ghosts

*Renormalization of Non-Abelian Gauge Theory

A: If you are looking for a full semester course online, the Urbana campus at the University of Illinois offers a good calc sequence online called Netmath, and they cover working with and applications of path integrals. 
Or are you looking for something shorter, or free, or cheaper:
There are some online textbooks/notes pages from various colleges as well as interactive graphing of line integrals. Others are non-interactive like e-textbooks, many free or free to subscribing universities. Possibly supplemented by something like Wolfram Alpha online to check answers and work on basic integrals. 
