Curvature of a space curve
= Curvature of a space curve
{title2=$\kappa$}
For a unit-speed curve $\gamma$, the unit tangent is $T=\gamma'$ and the curvature is $\kappa=|T'|$. It measures the rate at which the tangent direction turns.
= Curvature of a space curve
{title2=$\kappa$}
For a unit-speed curve $\gamma$, the unit tangent is $T=\gamma'$ and the curvature is $\kappa=|T'|$. It measures the rate at which the tangent direction turns.