From 8fac2db60a99bbf16b173d5c7414945c6c4c36f9 Mon Sep 17 00:00:00 2001 From: Thomas Neidhart Date: Tue, 31 Dec 2013 15:41:30 +0000 Subject: [PATCH] [MATH-1082] Add missing change entry. git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1554545 13f79535-47bb-0310-9956-ffa450edef68 --- src/changes/changes.xml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/changes/changes.xml b/src/changes/changes.xml index 50e199daf..5391a82c1 100644 --- a/src/changes/changes.xml +++ b/src/changes/changes.xml @@ -51,6 +51,12 @@ If the output is not quite correct, check for invisible trailing spaces! + + The cutOff mechanism of the "SimplexSolver" in package o.a.c.math3.optim.linear + could lead to invalid solutions. The mechanism has been improved in a way that + the tableau does not need to be updated anymore. Additionally, a new check will + prevent impossible solutions to be returned as valid. + Improved performance of "SimplexSolver" in package o.a.c.math3.optim.linear by directly performing row operations and keeping track of the current basic variables.