RE: Equal and operation with list
- To: mathgroup at smc.vnet.net
- Subject: [mg29526] RE: [mg29491] Equal and operation with list
- From: "David Park" <djmp at earthlink.net>
- Date: Sat, 23 Jun 2001 01:47:10 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Guillermo,
I think you only omitted Thread.
Y = {y1, y2};
B = {{b11, b12} , {b21, b22}};
X = {X1, X2};
Y == B.X // Thread
{y1 == b11 X1 + b12 X2, y2 == b21 X1 + b22 X2}
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/
> From: Guillermo Sanchez [mailto:guillerm at gugu.usal.es]
To: mathgroup at smc.vnet.net
>
> I have tree list:
>
> Y = {y1, y2}
> B = {{b11,b12} , {b21, b22}}
> X = {X1, X2}
>
> I wish transform its in a system of equations like this:
>
> {y1== b11 X1 + b12 X2, y2== b21 X1 + b22 X2}
>
> I have test with Y == Dot[B,X] but don`t work. Any help?. Thanks
>