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. More...
	~Integration ()
	Destructor.
void	setFunction (function< real_t(real_t)> const &f)
	Define function to integrate numerically. More...
void	setScheme (IntegrationScheme s)
	Set time inegration scheme. More...
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. More...
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. More...
real_t	run ()
	Run numerical integration. More...

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