Hey guys

I have 3 simple questions regarding Feynman Path Integrals:

1. Are Feynman Path Integrals simply another type of integral, with more steps required to calculate them? For example, is the difference between a regular path integral and a Feynman path integral analogous to a Calculus I definite integral and a Calculus II improper integral?

2. Can someone show me, step by step, how to calculate a simple Feynman Path Integral for a particle travelling through space? Ideally, this calculation will show the important aspects of calculating Feynman Path Integrals in general.

3. Can someone explain the notation for Feynman Path Integrals?

Thank you so much for any help you can offer!