dolfin::Legendre Class Reference

#include <Legendre.h>

List of all members.

Public Member Functions
	Legendre (int n)
real	operator() (real x)
	Evaluation at given point.
real	ddx (real x)
	Evaluation of derivative at given point.
real	d2dx (real x)
	Evaluation of second derivative at given point.

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Detailed Description

Legendre polynomial of given degree n on the interval [-1,1].

P0(x) = 1 P1(x) = x P2(x) = (3x^2 - 1) / 2 ...

The function values and derivatives are computed using three-term recurrence formulas.

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Constructor & Destructor Documentation

Legendre::Legendre (  int  n  )

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Member Function Documentation

real Legendre::d2dx (  real  x  )

Evaluation of second derivative at given point.

real Legendre::ddx (  real  x  )

Evaluation of derivative at given point.

real Legendre::operator() (  real  x  )

Evaluation at given point.

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The documentation for this class was generated from the following files:

• Legendre.h
• Legendre.cpp

Documentation automatically generated with Doxygen on 10 Sep 2004.