Tangent of a parametric discrete curve

Posted by gregseth on Stack Overflow See other posts from Stack Overflow or by gregseth
Published on 2010-03-31T12:56:03Z Indexed on 2010/03/31 13:03 UTC
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I have a parametric curve, say two vectors of doubles where the parameter is the index, and I have to calculate the angle of the tangent to this curve at any given point (index).

Any suggestion or link about how to do that?

Thanks.

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