Re: integer solution

*To*: mathgroup at smc.vnet.net*Subject*: [mg62004] Re: [mg61988] integer solution*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Wed, 9 Nov 2005 03:45:19 -0500 (EST)*Reply-to*: hanlonr at cox.net*Sender*: owner-wri-mathgroup at wolfram.com

{s,d,t,q}/.{Reduce[{ s+d+t+q==10, 6s+3d+2t+q==30, s>0,d>0,t>0,q>0}, {s,d},Integers]//ToRules} {{1, 7, 1, 1}, {2, 3, 4, 1}, {2, 4, 2, 2}, {3, 1, 3, 3}, {3, 2, 1, 4}} Bob Hanlon > > From: bd satish <bdsatish at gmail.com> To: mathgroup at smc.vnet.net > Date: 2005/11/08 Tue AM 03:41:30 EST > Subject: [mg62004] [mg61988] integer solution > > > 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 > >