The action of moving from q_a to q_b in time t is not a well defined function(adsbygoogle = window.adsbygoogle || []).push({});

for example, consider the harmonic oscillator

if q_a= q_b, then only for t being the multiple of the harmonic oscillator period will the particle return to its initial position

Therefore, for such kind of q_a and q_b, the action is ill-defined for an arbitrary t

but people are always taking the derivatives of the action to the time!!!!!!

**Physics Forums - The Fusion of Science and Community**

# The action is not a well defined function

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

Have something to add?

- Similar discussions for: The action is not a well defined function

Loading...

**Physics Forums - The Fusion of Science and Community**