This applet shows the unit tangent, normal, and binormal vectors at a point on a space curve. Drag the "t" slider to move the point along the curve. The "len" slider can be used to change the length of the vectors [b]T[/b], [b]N[/b], and [b]B[/b] for visibility (though they will not be unit vectors unless len is set to 1). The number kappa (K) is the curvature of the curve at the specified point.
You can view a different space curve by changing the parametric functions [math]f(t)[/math], [math]g(t)[/math], and/or [math]h(t)[/math].
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