Re: Equal and operation with list

• To: mathgroup at smc.vnet.net
• Subject: [mg29525] Re: Equal and operation with list
• From: Erk Jensen <Erk.Jensen at cern.ch>
• Date: Sat, 23 Jun 2001 01:47:08 -0400 (EDT)
• Organization: CERN http://www.cern.ch
• References: <9guom2\$nvh\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Guillermo Sanchez wrote:
>
> 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

For me it works:
Y == Dot[B , X]
{y1, y2} == {b11 X1 + b12 X2, b21 X1 + b22 X2}

same result of course for Y == B . Y

BTW.: You should use capital letters only with a lot of care for your
variables! Many of them are predefined to mean something else!

Ciao
-erk-
--
Dr.-Ing. Erk JENSEN                    mailto:Erk.Jensen at cern.ch
CERN  PS/RF  L19510                    http://cern.ch/Erk.Jensen
CH-1211 Geneva 23                      Tel.:     +41 22 76 74298
Switzerland                            Fax.:     +41 22 76 78510

```

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