Re: no results with 'InequalitySolve'
- To: mathgroup at smc.vnet.net
- Subject: [mg42348] Re: [mg42334] no results with 'InequalitySolve'
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Wed, 2 Jul 2003 06:36:10 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On Tuesday, July 1, 2003, at 09:45 PM, Oliver Kowalke wrote: > Hi, > > I've Mathematica 4.1 on Linux. If I try to solve this: > > InequalitySolve[Sin[x] > 0.5, x] > > Mathematica recalls it without solving it. Why? What do I've to do? > > thx, > Oliver > > > Why? Because there are not algorithms for solving non-algebraic inequalities (in general). However, your problem is trivial. You know that Sin[Pi/6] is 1/2, don't you? Now look at the graph. And next time do your homework yourself. Andrzej Kozlowski Yokohama, Japan http://www.mimuw.edu.pl/~akoz/ http://platon.c.u-tokyo.ac.jp/andrzej/