ag-gipp/GoUldI

                 ∂ L
Syntax::tsntxi: "------ ." is incomplete; more input is needed.
                     .
                 ∂ q
                      i

ToExpression::esntx: 
   Could not parse                                                        as
                   {\partial{L}\over \partial q_i} = {\mathrm{d} \over
                      \mathrm{d}t}{\partial{L}\over \partial{\dot{q_i}}}.

     input.

<math 
  xmlns='http://www.w3.org/1998/Math/MathML'>
  <semantics>
    <mi>$Failed</mi>
    <annotation-xml encoding='MathML-Content'>
      <ci>$Failed</ci>
    </annotation-xml>
  </semantics>
</math>