Figure 3From: Curvature of curves parameterized by a time scale Diamond-tangent plane with the normal vector \(\pmb{\varphi^{\Diamond_{1}}(t_{0},s_{0})\times\varphi^{\Diamond_{2}}(t_{0},s_{0})}\) at the point \(\pmb{\varphi(t_{0},s_{0})}\) of the surface \(\pmb{\mathcal{S}}\) . Back to article page