LAGUERRE_RULE, a MATLAB code which generates a specific Gauss-Laguerre quadrature rule, based on user input.
The rule is written to three files for easy use as input to other programs.
The Gauss-Laguerre quadrature rule is used as follows:
Integral ( a <= x < +oo ) exp ( - b * ( x - a ) ) f(x) dxis to be approximated by
Sum ( 1 <= i <= order ) w(i) * f(x(i))
laguerre_rule ( order, a, b, 'filename' )where
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
LAGUERRE_RULE is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
ALPERT_RULE, a MATLAB code which can set up an Alpert quadrature rule for functions which are regular, log(x) singular, or 1/sqrt(x) singular.
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CHEBYSHEV1_RULE, a MATLAB code which can compute and print a Gauss-Chebyshev type 1 quadrature rule.
CHEBYSHEV2_RULE, a MATLAB code which can compute and print a Gauss-Chebyshev type 2 quadrature rule.
CLENSHAW_CURTIS_RULE, a MATLAB code which defines a Clenshaw Curtis quadrature rule.
GEGENBAUER_RULE, a MATLAB code which can compute and print a Gauss-Gegenbauer quadrature rule.
GEN_HERMITE_RULE, a MATLAB code which can compute and print a generalized Gauss-Hermite quadrature rule.
GEN_LAGUERRE_RULE, a MATLAB code which can compute and print a generalized Gauss-Laguerre quadrature rule.
HERMITE_RULE, a MATLAB code which can compute and print a Gauss-Hermite quadrature rule.
JACOBI_RULE, a MATLAB code which can compute and print a Gauss-Jacobi quadrature rule.
LEGENDRE_RULE, a MATLAB code which computes a Gauss-Legendre quadrature rule.
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PATTERSON_RULE, a MATLAB code which computes a Gauss-Patterson quadrature rule.
QUADRATURE_RULES, a dataset directory which contains sets of files that define quadrature rules over various 1D intervals or multidimensional hypercubes.
QUADRATURE_RULES_LAGUERRE, a dataset directory which contains triples of files defining standard Laguerre quadrature rules.
QUADRULE, a MATLAB code which contains 1-dimensional quadrature rules.
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