Evaluate k-th derivative of Bspline at one parameter
function evaluateDerN extends Modelica.Icons.Function; input Data spline "Bspline to be evaluated"; input Real u "Parameter value at which Bspline shall be evaluated"; input Integer k(min = 0) "Differentation order (0: function value, 1: first derivative, ...)"; output Real x_derN[spline.ndim] "k-th derivative of Bspline at u"; end evaluateDerN;