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gaussquad

by Matt Fig

07 Oct 2005 (Updated 02 Oct 2008)

Code covered by BSD License

Adaptive form of gaussleg.m.

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Description

gaussquad(f,a,b)

GAUSSQUAD uses an adaptive formulation of Gauss-Legendre quadrature to evaluate the integral of f from a to b with default tolerance of 10^-14. User can specify another tolerance by: gaussquad(f,a,b,tol).
The input function f can be an inline or function handle.

Acknowledgements

This submission has inspired the following:
QUADGR

MATLAB release

MATLAB 7.2 (R2006a)

Tags for This File
Everyone's Tags	gauss, gaussian, integration, legendre, quadrature
Tags I've Applied
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Comments and Ratings (3)
11 Jul 2006	J K	varargin isn't fully implemented
12 Jul 2006	mike kung	Much better.
31 Jul 2006	Fang Chu	Nicely done.

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Updates
18 Oct 2005	The update uses an even number of Gauss points, this eliminates a problem of NaN at zero.
18 Oct 2005	The last update didn't take?
30 Jan 2006	Faster algorithm
30 Jan 2006	Faster algorithm.
31 Jan 2006	Better help text.
02 Feb 2006	Now uses subintervals in the adaptive engine.
12 Jul 2006	Updated from version 6 edition.
02 Oct 2008	Added input checking.

Tag Activity for this File
Tag	Applied By	Date/Time
integration	Matt Fig	22 Oct 2008 08:02:27
gauss	Matt Fig	22 Oct 2008 08:02:27
gaussian	Matt Fig	22 Oct 2008 08:02:27
quadrature	Matt Fig	22 Oct 2008 08:02:27
legendre	Matt Fig	22 Oct 2008 08:02:27

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