Frenet frame
= Frenet frame
{title2=$(T,N,B)$}
For a sufficiently smooth unit-speed curve with $\kappa>0$, the Frenet frame is the positively oriented orthonormal frame
$$
T=\gamma',\qquad N=\frac{T'}{\kappa},\qquad B=T\times N.
$$
= Frenet frame
{title2=$(T,N,B)$}
For a sufficiently smooth unit-speed curve with $\kappa>0$, the Frenet frame is the positively oriented orthonormal frame
$$
T=\gamma',\qquad N=\frac{T'}{\kappa},\qquad B=T\times N.
$$