A note on the paper by cohen and gismalla on quadrature formulae for symmetric integrands

Abstract

Cohen and Gismalla present third degree quadrature formulae which become seventh degree formulae when the integrand f(x y) is symmetric i.e. f(x y) = f(y x). It is shown here that with a suitable choice of the parameters the quadrature formulae can be made to be fifth degree for general functions.

Keywords:

• Symmetric quadrature rules

C.R. Categories:

• 5.16

Additional information

Notes on contributors

Lynne D. Jenkins

Present address: West Glamorgan Institute of Higher Education. Swansea, U.K