IFEM-2/Lagrange_8h_source.html

// $Id$

//==============================================================================

//==============================================================================


#ifndef _LAGRANGE_H

#define _LAGRANGE_H


#include "MatVec.h"


namespace Lagrange

{

  bool computeBasis(RealArray& val, int p1, double x1,

                    int p2 = 0, double x2 = 0.0,

                    int p3 = 0, double x3 = 0.0);


  bool computeBasis(RealArray& val, Matrix& derval, int p1, double x1,

                    int p2 = 0, double x2 = 0.0,

                    int p3 = 0, double x3 = 0.0);


  bool computeBasis(RealArray& val, Matrix* derval,

                    const RealArray& p1, double x1,

                    const RealArray& p2 = {}, double x2 = 0.0,

                    const RealArray& p3 = {}, double x3 = 0.0);

};


#endif

RealArray
std::vector< Real > RealArray
A real-valued array without algebraic operations.
Definition ImmersedBoundaries.h:32

MatVec.h
Global algebraic operations on index 1-based matrices and vectors.

utl::matrix< Real >

Lagrange
Evaluation of Lagrange basis functions.
Definition Lagrange.h:21

Lagrange::computeBasis
bool computeBasis(RealArray &val, int p1, double x1, int p2=0, double x2=0.0, int p3=0, double x3=0.0)
Evaluates a 1D, 2D or 3D Lagrangian basis at a given point.
Definition Lagrange.C:80