The first derivative of function atan3b_der, i.e. the second derivative of the function atan3b.
function atan3b_dder extends Modelica.Icons.Function; extends Modelica.Icons.ObsoleteModel; import Modelica.Math; input Real u1; input Real u2; input SI.Angle y0 = 0 "y shall be in the range: -pi < y-y0 < pi"; input Real u1_der; input Real u2_der; input Real u1_dder; input Real u2_dder; output SI.AngularAcceleration y_dder; end atan3b_dder;
Developed 2010 at the DLR Institute of System Dynamics and Control