ag-gipp/GoUldI

Syntax::tsntxi: 
   "RowBox[{|, A, |, RowBox[{, 
         TemplateBox[{RowBox[{Cell[BoxData[FormBox[GridBox[{{Cell[
                    TextData[{ , Cell[<
<2>>],  }]], <
  <1>>}, {<
    <2>>}}], 
                Tra<
      <9>>orm]]]}]}, Abs], , ad - bc}]}]" is incomplete; more
     input is needed.

ToExpression::esntx: 
   Could not parse |A| = \begin{vmatrix} a & b\\c & d \end{vmatrix}=ad - bc
     as 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>