|Favati P., Lotti G., Romani F. Improving quadpack automatic integration routines. Internal note IEI-B4-19, 1987.|
|Two automatic adaptive integrators from QUADPACK (namely QAG and QAGS) are modified by substituting the Gauss-Konrod rules used for local quadrature with new closed symmetric interpolatory rules well suited for composition. Extensive numerical tests, both for one-dimensional and two-dimensional integrals, show that the resulting programs are faster, perform less functional evaluations and are more reliable.|
G.1.4 Numerical analysis. Quadrature and Numerical Differentiation. Adaptive and iterative quadrature
G.4 Mathematical Software. Algorithm design and analysis.
|1) Download Document PDF|
Open access Restricted Private