[ https://issues.apache.org/jira/browse/NUMBERS-52?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gilles moved MATH-738 to NUMBERS-52: ------------------------------------ Fix Version/s: (was: 4.0) Affects Version/s: (was: 3.0) Workflow: jira (was: classic default workflow) Key: NUMBERS-52 (was: MATH-738) Project: Commons Numbers (was: Commons Math) > Incomplete beta function I(x, a, b) is inaccurate for large values of a > and/or b > -------------------------------------------------------------------------------- > > Key: NUMBERS-52 > URL: https://issues.apache.org/jira/browse/NUMBERS-52 > Project: Commons Numbers > Issue Type: Bug > Reporter: Sébastien Brisard > Priority: Major > Labels: special-functions > > This was first reported in MATH-718. The result of the current implementation > of the incomplete beta function I(x, a, b) is inaccurate when a and/or b are > large-ish. > I've skimmed through [slatec|http://www.netlib.org/slatec/fnlib/betai.f], > GSL, > [Boost|http://www.boost.org/doc/libs/1_38_0/libs/math/doc/sf_and_dist/html/math_toolkit/special/sf_beta/ibeta_function.html] > as well as NR. At first sight, neither uses the same method to compute this > function. I think [TOMS-708|http://www.netlib.org/toms/708] is probably the > best option. -- This message was sent by Atlassian JIRA (v7.6.3#76005)