Re: Solve fails with this simple inequality problem
- To: mathgroup at smc.vnet.net
- Subject: [mg115680] Re: Solve fails with this simple inequality problem
- From: Daniel Lichtblau <danl at wolfram.com>
- Date: Tue, 18 Jan 2011 05:49:54 -0500 (EST)
David Skulsky wrote: > A few observations: > > 1. Meter=Floor[Sqrt[19]+7] is not an equation, it's an assignment. > Meter==Floor[Sqrt[19]+7] is an equation, for which the solution is 11. > > 2. The solution to {Meter==11 && Meter < 6} is the empty set, so I think > Mathematica is doing exactly what it should do. > > 3. I would avoid using a symbol called "Meter" because there's a good chance > it'll conflict with some other use of the symbol > > David I dunno. If some gal was simultaneously equal to 11 and less than 6, I might be curious to meter. Daniel Lichtblau Wolfram Research (and ducking for cover)