Optimal addition of knots to cubature formulae for planar regions
A method is described to add knots to a cubature formula of degree 2k-1 for an integral over a symmetric region, to obtain a cubature formula of degree \(2k+1\). This method is used to construct cubature formulae for the square, the circle, the hexagon and the entire plane.
scientific article; zbMATH DE number 3917535
scientific article