Re: What's going on here??
- To: mathgroup at smc.vnet.net
- Subject: [mg33528] Re: What's going on here??
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Fri, 29 Mar 2002 06:13:10 -0500 (EST)
- References: <a7jt5j$frm$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Mat,
More odd behaviour
Simplify[5(b*a - (b + 1)*a + a) == 0, {a>0}]
False
Simplify[(b*a - (b + 1)*a + a) == 0, {a>0}]
True
Simplify[5*(b*a - (b + 1)*a + a) == 0, {a>5,b>5}]
True
Simplify[5(a+a b-a(1+b))==0]
True
I don't have an explanation.
--
Allan
---------------------
Allan Hayes
Mathematica Training and Consulting
Leicester UK
www.haystack.demon.co.uk
hay at haystack.demon.co.uk
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565
"Mat Bowen" <m.k.bowen at lboro.ac.uk> wrote in message
news:a7jt5j$frm$1 at smc.vnet.net...
> Hello,
>
> I was getting weird results today and reduced the code producing them to
> this:
>
> Clear[a,b,c]
> Simplify[5(a+a b-a(1+b))==0,{c>5}]
>
> False
>
>
> Surely that¹s not right?! Can anyone explain whats going on?
>
> Thanks, and apologies if this is already known.
>
> Mat Bowen
> Department of Mathematics
> Loughborough University
>
>