HERMITE_RULE is a MATLAB program which generates a specific Gauss-Hermite quadrature rule, based on user input.
The rule is written to three files for easy use as input to other programs.
The Gauss-Hermite quadrature rule is used as follows:
c * Integral ( -oo < x < +oo ) f(x) exp ( - b * ( x - a )^2 ) dxis to be approximated by
Sum ( 1 <= i <= order ) w(i) * f(x(i))Generally, a Gauss-Hermite quadrature rule of n points will produce the exact integral when f(x) is a polynomial of degree 2n-1 or less.
The value of C in front of the integral depends on the user's choice of the SCALE parameter:
hermite_rule ( order, a, b, scale 'filename' )where
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
HERMITE_RULE is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.
ALPERT_RULE, a MATLAB library which can set up an Alpert quadrature rule for functions which are regular, log(x) singular, or 1/sqrt(x) singular.
CCN_RULE, a MATLAB program which defines a nested Clenshaw Curtis quadrature rule.
CHEBYSHEV1_RULE, a MATLAB program which can compute and print a Gauss-Chebyshev type 1 quadrature rule.
CHEBYSHEV2_RULE, a MATLAB program which can compute and print a Gauss-Chebyshev type 2 quadrature rule.
CLENSHAW_CURTIS_RULE, a MATLAB program which defines a Clenshaw Curtis quadrature rule.
GEGENBAUER_RULE, a MATLAB program which can compute and print a Gauss-Gegenbauer quadrature rule.
GEN_HERMITE_RULE, a MATLAB program which can compute and print a generalized Gauss-Hermite quadrature rule.
GEN_LAGUERRE_RULE, a MATLAB program which can compute and print a generalized Gauss-Laguerre quadrature rule.
HERMITE_EXACTNESS, a MATLAB program which tests the polynomial exactness of Gauss-Hermite quadrature rules.
HERMITE_POLYNOMIAL, a MATLAB library which evaluates the physicist's Hermite polynomial, the probabilist's Hermite polynomial, the Hermite function, and related functions.
HERMITE_TEST_INT, a MATLAB library which defines test integrands for Hermite integrals with interval (-oo,+oo) and density exp(-x^2).
JACOBI_RULE, a MATLAB program which can compute and print a Gauss-Jacobi quadrature rule.
LAGUERRE_RULE, a MATLAB program which can compute and print a Gauss-Laguerre quadrature rule.
LEGENDRE_RULE, a MATLAB program which computes a Gauss-Legendre quadrature rule.
LINE_FELIPPA_RULE, a MATLAB library which returns the points and weights of a Felippa quadrature rule over the interior of a line segment in 1D.
PATTERSON_RULE, a MATLAB program which computes a Gauss-Patterson quadrature rule.
QUADRATURE_RULES_HERMITE_PHYSICIST, a dataset directory which contains Gauss-Hermite quadrature rules, for integration on the interval (-oo,+oo), with weight function exp(-x^2).
QUADRATURE_RULES_HERMITE_PROBABILIST, a dataset directory which contains Gauss-Hermite quadrature rules, for integration on the interval (-oo,+oo), with weight function exp(-x^2/2).
QUADRATURE_RULES_HERMITE_UNWEIGHTED, a dataset directory which contains Gauss-Hermite quadrature rules, for integration on the interval (-oo,+oo), with weight function 1.
QUADRULE, a MATLAB library which contains 1-dimensional quadrature rules.
TRUNCATED_NORMAL_RULE, a MATLAB program which computes a quadrature rule for a normal probability density function (PDF), also called a Gaussian distribution, that has been truncated to [A,+oo), (-oo,B] or [A,B].
HERM_O4 is a Hermite rule of order 4, created by the command
hermite_rule ( 4, 0.0, 1.0, 0, 'herm_o4' )
You can go up one level to the MATLAB source codes.