Derivative of interpolated 2-dim. table defined by matrix
pure function getDerTable2DValue extends Modelica.Icons.Function; input Modelica.Blocks.Types.ExternalCombiTable2D tableID "External table object"; input Real u1 "Value of first independent variable"; input Real u2 "Value of second independent variable"; input Real der_u1 "Derivative of first independent variable"; input Real der_u2 "Derivative of second independent variable"; output Real der_y "Derivative of interpolated value"; end getDerTable2DValue;