Re: Solve fails with this simple inequality problem
- To: mathgroup at smc.vnet.net
- Subject: [mg115654] Re: Solve fails with this simple inequality problem
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Mon, 17 Jan 2011 05:41:14 -0500 (EST)
First, don' t use Set ( = ) in an equation; use Equal ( == )
Floor[Sqrt[19] + 7]
11
So the result is empty since Meter cannot be 11 and less than 6. If you meant the Sqrt to be negative
Solve[Meter == Floor[-Sqrt[19] + 7] && Meter < 6, Meter]
{{Meter -> 2}}
Bob Hanlon
---- KenR <ramsey2879 at msn.com> wrote:
=============
Solve[Meter = Floor[Sqrt[19]+7] && Meter < 6, Meter] gives a null "{}"
Any workarounds?