Re: integer solution
- To: mathgroup at smc.vnet.net
- Subject: [mg62012] Re: integer solution
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Wed, 9 Nov 2005 03:45:26 -0500 (EST)
- Organization: The University of Western Australia
- References: <dkpokt$rcd$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <dkpokt$rcd$1 at smc.vnet.net>, bd satish <bdsatish at gmail.com>
wrote:
> I want to find the integral solutions of the following two equations:
> s + d + t+q =10 ; # two equations
> 6s + 3d + 2t + q = 30 ; # 4 unknowns
> I want only those solutions for which
> s>0 d>0 t>0 q>0
Reduce[d + q + s + t == 10 && 3*d + q + 6*s + 2*t == 30 && s > 0 &&
d > 0 && q > 0 && t > 0 && Element[{s, d, t, q}, Integers],
{s, d, t, q}]
Cheers,
Paul
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