bug in InequalitySolve version 3?
- To: mathgroup at smc.vnet.net
- Subject: [mg23554] bug in InequalitySolve version 3?
- From: Gianluca Gorni <gorni at dimi.uniud.it>
- Date: Sat, 20 May 2000 03:10:29 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hello! I wrote a program that works fine in version 4, using InequalitySolve to solve systems of linear inequalities, and wanted to adapt it for use of a student who has only access to version 3. I ran into unexpected problems. Take this example: ($Version="Solaris 3.0 (August 21, 1997)") Needs["Algebra`InequalitySolve`"] InequalitySolve[(y > 0) && (y < 1), {x, y}] This command gives back the input and produces 3 messages, one of which is funny: InequalitySolve::"nlin": "\!\(\(y > 0\) && \(y < 1\)\) is not a formula \ constructed with linear equations and inequalities in \!\({x, y}\)." Is this a bug? Can I forget about using InequalitySolve v.3? Gianluca Gorni -- +---------------------------------+ | Gianluca Gorni | | Universita` di Udine | | Dipartimento di Matematica | | e Informatica | | via delle Scienze 208 | | I-33100 Udine UD | | Italy | +---------------------------------+ | Ph.: (39) 0432-558422 | | Fax: (39) 0432-558499 | | mailto:gorni at dimi.uniud.it | | http://www.dimi.uniud.it/~gorni | +---------------------------------+