About: Reality Is---The Feynman Path Integral


  1. physics
  2. bongos
  3. feynman


Mark de LA says

Let gamma be a path given parametrically by sigma(t). Let s denote arc length from the initial point. Then

int_gammaf(s)ds = int_a^bf(sigma(t))|sigma^'(t)|dt (1)
= int_a^bf(x(t),y(t),z(t))|sigma^'(t)|dt, (2)

where gamma:{sigma(t):a<=t<=b}.
FYI – http://www.wolframalpha.com/input/?i=path+integral 

Mark de LA says
XOR https://en.wikipedia.org/wiki/Path_integral_formulation

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