Michael Zier <mic### [at] mirizide> wrote:
> So in order to keep the solution simple, 
> usually one assumes elongations small compared to the pendulum length (so 
> that you can approximate "sin(x)" by a much more linear "x").

  Or in other words, sin(x) is very close to x for the range -y <= x <= y,
where y is a small positive value.

-- 
                                                          - Warp

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