Implementation of the second derivative of the function IDEAS.Utilities.Math.Functions.regNonZeroPower.
function der_2_regNonZeroPower extends Modelica.Icons.Function; input Real x "Abscissa value"; input Real n "Exponent"; input Real delta = 0.01 "Abscissa value where transition occurs"; input Real der_x; input Real der_2_x; output Real der_2_y "Function value"; end der_2_regNonZeroPower;
der_x
term.
This is for
issue 303.