IFEM/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:29

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