Re: Systems of linear equations

*To*: mathgroup at smc.vnet.net*Subject*: [mg123173] Re: Systems of linear equations*From*: DrMajorBob <btreat1 at austin.rr.com>*Date*: Fri, 25 Nov 2011 04:56:30 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201111241154.GAA28902@smc.vnet.net>*Reply-to*: drmajorbob at yahoo.com

(a) Show us the Solve that failed. or (b) Under "Possible Issues", Help gives a decent example: Solution found for an underdetermined system is not unique: LinearSolve[{{1, 2, 3}, {4, 5, 6}}, {6, 15}] {0, 3, 0} All solutions found by Solve: {x, y, z} /. First[Solve[Thread[{{1, 2, 3}, {4, 5, 6}}.{x, y, z} == {6, 15}], {x, y}]] {z, 3 - 2 z, z} Bobby On Thu, 24 Nov 2011 05:54:22 -0600, lorenzo <lorenzo_ktm at yahoo.it> wrote: > Hi, > how can I obtain ALL the possible solutions of a linear system? > > Using LinearSolve you obtain only one solution. > Mathematica's doc says you should use Solve instead, but i got this > error: > "Solve::nsmet: This system cannot be solved with the methods available > to Solve. " > -- DrMajorBob at yahoo.com

**References**:**Systems of linear equations***From:*lorenzo <lorenzo_ktm@yahoo.it>