Integration Class Reference

Class for numerical integration methods. More...

#include <Integration.h>

Public Member Functions
	Integration ()
	Default constructor.
	Integration (real_t low, real_t high, function< real_t(real_t)> const &f, IntegrationScheme s, real_t error)
	Constructor.
	~Integration ()
	Destructor.
void	setFunction (function< real_t(real_t)> const &f)
	Define function to integrate numerically.
void	setScheme (IntegrationScheme s)
	Set time inegration scheme.
void	setTriangle (real_t x1, real_t y1, real_t x2, real_t y2, real_t x3, real_t y3)
	Define integration domain as a quadrilateral.
void	setQuadrilateral (real_t x1, real_t y1, real_t x2, real_t y2, real_t x3, real_t y3, real_t x4, real_t y4)
	Define integration domain as a quadrilateral.
real_t	run ()
	Run numerical integration.

Detailed Description

Class for numerical integration methods.

Class NumInt defines and stores numerical integration data

Author

Rachid Touzani

Copyright

GNU Lesser Public License

Constructor & Destructor Documentation

Integration()

Integration	(	real_t	low,
		real_t	high,
		function< real_t(real_t)> const &	f,
		IntegrationScheme	s,
		real_t	error )

Constructor.

Parameters

[in]	low	Lower value of integration interval
[in]	high	Upper value of integration interval
[in]	f	Function to integrate
[in]	s	Integration scheme. To choose among enumerated values: LEFT_RECTANGLE: RIGHT_RECTANGLE: MID_RECTANGLE: TRAPEZOIDAL: SIMPSON: GAUSS_LEGENDRE:
[in]	error

Member Function Documentation

run()

real_t run

(

)

Run numerical integration.

Returns

Computed approximate value of integral

setFunction()

void setFunction

(

function< real_t(real_t)> const &

f

)

Define function to integrate numerically.

Parameters

[in]

f

Function to integrate

setQuadrilateral()

void setQuadrilateral	(	real_t	x1,
		real_t	y1,
		real_t	x2,
		real_t	y2,
		real_t	x3,
		real_t	y3,
		real_t	x4,
		real_t	y4 )

Define integration domain as a quadrilateral.

Parameters

[in]	x1	x-coordinate of first vertex of quadrilateral
[in]	y1	y-coordinate of first vertex of quadrilateral
[in]	x2	x-coordinate of second vertex of quadrilateral
[in]	y2	y-coordinate of second vertex of quadrilateral
[in]	x3	x-coordinate of third vertex of quadrilateral
[in]	y3	y-coordinate of third vertex of quadrilateral
[in]	x4	x-coordinate of fourth vertex of quadrilateral
[in]	y4	y-coordinate of fourth vertex of quadrilateral

setScheme()

void setScheme

(

IntegrationScheme

s

)

Set time inegration scheme.

Parameters

[in]

s

Scheme to choose among enumerated values: LEFT_RECTANGLE: RIGHT_RECTANGLE: MID_RECTANGLE: TRAPEZOIDAL: SIMPSON: GAUSS_LEGENDRE:

setTriangle()

void setTriangle	(	real_t	x1,
		real_t	y1,
		real_t	x2,
		real_t	y2,
		real_t	x3,
		real_t	y3 )

Define integration domain as a quadrilateral.

Parameters

[in]	x1	x-coordinate of first vertex of triangle
[in]	y1	y-coordinate of first vertex of triangle
[in]	x2	x-coordinate of second vertex of triangle
[in]	y2	y-coordinate of second vertex of triangle
[in]	x3	x-coordinate of third vertex of triangle
[in]	y3	y-coordinate of third vertex of triangle