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This is a question Off Topic

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(, Sun 1 Apr 2001, 1:00)
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Error
l_R(t) = \sqrt{ \left(x_2(t)-x_1(t)\right)^2 + \left(y_2(t)-y_1(t)\right)^2 + \left(z_2(t)-z_1(t)\right)^2 }
should be
l_R(t) = \sqrt{ \left(x_2(t)-x_1(t)\right)^2 + \left(y_1(t)-y_2(t)\right)^2 + \left(z_2(t)-z_1(t)\right)^2 }.

I dont think you really thought this through.
(, Sun 14 Dec 2008, 0:56, Reply)

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