clipka <nomail@nomail> wrote:
> It's fundamentally impossible to do that.

> To compute a tangent to an arbitrary curve defined as f(t) (the value of which
> in this case is a vector), you need the derivative f'(t) of that function,

  I find those two sentences contradictory. First you say that it's
impossible, and immediately after you tell how it's done.

-- 
                                                          - Warp

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