Lets say that we have a parametric surface of the form $S(u, v) = [x, y, z]^\top$ where $S :\rm I\!R ^2\rightarrow \rm I\!R^3$.
Provided that for a point $\rm p \in I\!R ^2$ that lies on the surface $S$, we can compute its global position (i.e., $\rm{S}(p) = [x_p, y_p, z_p]^\top$), the first derivatives (i.e, $\rm{S}_u(\rm p)$ and $\rm{S}_v(\rm p)$), the second derivatives (i.e, $\rm{S}_{uu}(\rm p)$ and $\rm{S}_{vv}(\rm p)$) and the normal vector of the surface at $\rm p$ (i.e., $\rm N_s(p)$).
Given this information can we compute the mixed derivative of the surface $\rm S$ at $\rm p$ (i.e., $\rm{S}_{uv}(\rm p) = \rm{S}_{vu}(\rm p)$)?