Return-Path: X-Original-To: apmail-commons-issues-archive@minotaur.apache.org Delivered-To: apmail-commons-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id DF8BB100BE for ; Tue, 9 Apr 2013 09:58:17 +0000 (UTC) Received: (qmail 94612 invoked by uid 500); 9 Apr 2013 09:58:17 -0000 Delivered-To: apmail-commons-issues-archive@commons.apache.org Received: (qmail 94442 invoked by uid 500); 9 Apr 2013 09:58:16 -0000 Mailing-List: contact issues-help@commons.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: issues@commons.apache.org Delivered-To: mailing list issues@commons.apache.org Received: (qmail 94421 invoked by uid 99); 9 Apr 2013 09:58:16 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 09 Apr 2013 09:58:16 +0000 Date: Tue, 9 Apr 2013 09:58:15 +0000 (UTC) From: =?utf-8?Q?Alexander_Sehlstr=C3=B6m_=28JIRA=29?= To: issues@commons.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (MATH-966) Native support for upper and lower bound for SimplexSolver MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/MATH-966?page=3Dcom.atlassian.= jira.plugin.system.issuetabpanels:all-tabpanel ] Alexander Sehlstr=C3=B6m updated MATH-966: ------------------------------------- Attachment: simplextest.java Test file. =20 > Native support for upper and lower bound for SimplexSolver > ---------------------------------------------------------- > > Key: MATH-966 > URL: https://issues.apache.org/jira/browse/MATH-966 > Project: Commons Math > Issue Type: Improvement > Affects Versions: 4.0, 3.1.1 > Reporter: Alexander Sehlstr=C3=B6m > Priority: Minor > Attachments: simplextest.java > > > The SimplexSolver (import org.apache.commons.math3.optim.linear.SimplexSo= lver) do not support lower and upper bounds as input arguments. It would be= convenient to have this support since this would be very helpful when deal= ing with unconstrained problems (no Ax =3D c present) that has bounds on x = (x_l <=3D x <=3D x_u). > Attached is a piece of code in need for such a feature where a lot of fid= deling is needed in order to convert the bounds (x_l <=3D x <=3D x_u) to co= nstraints (Ax =3D c). -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrato= rs For more information on JIRA, see: http://www.atlassian.com/software/jira