.Modelica_LinearSystems2.Math.Polynomial.derivativeValue

Information

Syntax

der_y = Polynomial.derivativeValue(p, x, i);

Description

Evaluate an i-th derivative of a polynomial p at a given Real abszissa value x.

Example

import Modelica_LinearSystems2.Math.Polynomial;

x = Polynomial.x();
p1 = -6*x^2 + 4*x -3;

Polynomial.derivativeValue(p1, 1, 2);
// = -12.0

See also

Polynomial.evaluate, Polynomial.integralValue.

Interface

encapsulated function derivativeValue
  import Modelica_LinearSystems2.Math.Polynomial;
  import Modelica.Utilities.Streams.print;
  input Polynomial p "Polynomial";
  input Real x "Abszissa value";
  input Integer i(min = 1) = 1 "i-th derivative to be evaluated; i=1 is first derivative";
  output Real der_y "Value of i-th derivative of polynomial at x";
end derivativeValue;