packageNonlinear

Information

This package contains functions to perform tasks such as numerically integrating a function, or solving a nonlinear algebraic equation system. The common feature of the functions in this package is that the nonlinear characteristics are passed as user definable functions.

For details about how to define and to use functions as input arguments to functions, see ModelicaReference.Classes.'function' or Section 12.4.2 Functional Input Arguments of the Modelica 3.6 specification.

Contents

Name	Description
Examples	Examples demonstrating the usage of the functions in package Nonlinear
Interfaces	Interfaces for functions
quadratureLobatto	Return the integral of an integrand function using an adaptive Lobatto rule
solveOneNonlinearEquation	Solve f(u) = 0 in a very reliable and efficient way (f(u_min) and f(u_max) must have different signs)

Revisions

• July 2010 by Martin Otter (DLR-RM):
  Included in MSL 3.2, adapted, and documentation improved
• March 2010 by Andreas Pfeiffer (DLR-RM):
  Adapted the quadrature function from Gerhard Schillhuber and the solution of one non-linear equation in one unknown from Modelica.Media.Common.OneNonLinearEquation so that function objects are used.
• June 2002 by Gerhard Schillhuber (master thesis at DLR-RM):
  Adaptive quadrature to compute the curve length of a Spline.