FirstDerQ

• FirstDerQ[expr] yields True if expr is of the form covd[i], LieD[v], ParamD[par] or OverDot, and False otherwise.

• FirstDerQ gives False on multiple derivatives, including multiple parametric derivatives.
• Do not confuse this function with CovDQ.
• See: Section 4.5, Section 4.8.
• New in version 0.
• Last update: 14-V-2008 for version 0.9.5 of xTensor`.

Created by Mathematica  (May 16, 2008)