Re: How to feed a list of xy pairs into Solve to output xyz triplets
- To: mathgroup at smc.vnet.net
- Subject: [mg101184] Re: How to feed a list of xy pairs into Solve to output xyz triplets
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 26 Jun 2009 06:49:56 -0400 (EDT)
- Organization: Uni Leipzig
- References: <h1vm3r$aad$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi,
res = Function @@ {{x, y}, z /. Solve[6*x + 4*y + z == 1, z][[1]]};
list = {{1, 2}, {3, 1}, {5, 4}, {6, 3}, {2, 5}};
and
res @@@ list
Regards
Jens
Bill wrote:
> Hi:
>
> Let's say that I have a list of xy coordinate pairs:
>
> list= {{1,2}},{3,1},{5,4},{6,3},{2,5}}.
>
> Now I'd like to find xyz triplets using Solve for the equation 6*x + 4*y + z = 1. >
> xyz results: {{1,2,-13}},{3,1,-21},{5,4,-45},{6,3,-47},{2,5,-31}}. (I used Solve 5 times.)
>
>
> Question: How do I code that into Mathematica for a "one shot output?" (Use Solve once.)
>
>
>
> Thanks,
>
> Bill
>
>
> Mathematica 6.0.1 using Win XP on a pc.
>