.FCSys.Utilities.Polynomial.f

Polynomial expressed in form: f = ((… + a_-1-n)/x + a_-n)/x + a_1-n + x·(a_2-n + x·(a_3-n + …))

Information

For high-order polynomials, this is more computationally efficient than the form Σa_i x^{n + i - 1}.

Note that the order of the polynomial is n + size(a, 1) - 1 (not n).

The derivative of this function is df().

Interface

function f
  extends Modelica.Icons.Function;
  input Real x "Argument" annotation(
    Dialog(__Dymola_label = "<html><i>x</i></html>"));
  input Real a[:] "Coefficients" annotation(
    Dialog(__Dymola_label = "<html><i>a</i></html>"));
  input Integer n = 0 "Power of the first term" annotation(
    Dialog(__Dymola_label = "<html><i>n</i></html>"));
  output Real f "Result" annotation(
    Dialog(__Dymola_label = "<html><i>f</i></html>"));
end f;

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