Re: 5 variables Guass isnt working, matrix solution
- To: mathgroup at smc.vnet.net
- Subject: [mg50469] Re: [mg50456] 5 variables Guass isnt working, matrix solution
- From: DrBob <drbob at bigfoot.com>
- Date: Sun, 5 Sep 2004 03:53:45 -0400 (EDT)
- References: <159.3e690509.2e6b3260@aol.com>
- Reply-to: drbob at bigfoot.com
- Sender: owner-wri-mathgroup at wolfram.com
As you can see, I hope, I didn't get anything in the denominator. Mathematica's Solve function did.
Bobby
On Sat, 4 Sep 2004 10:59:44 EDT, <Rvald at aol.com> wrote:
> Dear Dr. Bob,
>
> How did you get 46 in the denominator?
>
> Roger V.
>
>
> In a message dated 9/4/2004 3:53:47 AM Central Standard Time,
> drbob at bigfoot.com writes:
> 5a - c - d - e == 0.5,
> 4b - c - e == 1,
> 6c - a - b - d - e == 1,
> 4d - a - c == 1,
> 5e - a - b - c == 1.5} // Solve
>
> {{a -> 0.413043, c -> 0.5, d -> 0.478261, b -> 0.521739, e -> 0.586957}}
>
> or
>
> {5a - c - d - e == 1/2,
> 4b - c - e == 1,
> 6c - a - b - d - e == 1,
> 4d - a - c == 1,
> 5e - a - b - c == 3/2} // Solve
>
> {{a -> 19/46, c -> 1/2,
> d -> 11/23, e -> 27/46,
> b -> 12/23}}
>
> Bobby
>
> On Sat, 4 Sep 2004 01:43:44 -0400 (EDT), roger <roger at banditorange.com> wrote:
>
>> 5a-c-d-e =0.5
>> 4b-c-e =1
>> 6c-a-b-d-e=1
>> 4d-a-c =1
>> 5e-a-b-c =1.5
>>
>> Solve for a,b,c,d, and e. Guass inversion isnt working.
>>
>> Maybe a matrix solution.
>>
>>
>>
>
>
>
--
DrBob at bigfoot.com
www.eclecticdreams.net