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Some equation is indeed needed to understand the copyright of that file From someone <> !

$\displaystyle a = \phi
$

Some equation is indeed needed to understand the copyright of that file From someone <> !

$\displaystyle a = \phi
$


1 chapter

The fundamental equation is

$\displaystyle 2 a = \dot{\phi}
$

Some equation is indeed needed to understand the copyright of that file From someone <> !

$\displaystyle a = \phi
$