Let be a path-independent function and
be a path-dependent function; then
— 1.5.1 Varying a path
— Structure and Interpretation of Classical Mechanics
.
Prove that
~~~
Since is path-independent,
Let .
When ,
.
— Me@2019-06-24 10:55:28 PM
.
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2019.06.25 Tuesday (c) All rights reserved by ACHK