I have been concentrating on Axiom's numerical capabilities. The last patch is the beginnings of regression tests against Abramowitz and Stegun (1985) and Zwillinger's CRC Standard (2003). I've also created firefox hyperdoc pages for the gamma function standard from the new DLMF. I plan to fill these pages out with Spad code and test cases as time permits.
I'm a member of the Numerical Mathematics Consortium (http://www.nmconsortium.org).A recently published draft standard, which I'm reviewing, is available at: <http://www.nmconsortium.org/docs/NMC_Technical_Specification%20(9-24-2007).pdf> The A&S handbook lists polynomial coefficients for approximation of E1, the exponential integral. Does anyone know how these coefficients were derived? Is it a chebyshev polynomial? I want to dynamically compute these coefficients to the required precision. Tim _______________________________________________ Axiom-developer mailing list Axiom-developer@nongnu.org http://lists.nongnu.org/mailman/listinfo/axiom-developer
