pure function getDer2Table2DValue extends Modelica.Icons.Function; input ModelicaTableAdditions.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"; input Real der2_u1 "Second derivative of first independent variable"; input Real der2_u2 "Second derivative of second independent variable"; output Real der2_y "Second derivative of interpolated value"; end getDer2Table2DValue;