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Topic: Re: [mg4253] Help: Column/Row Vector
Replies: 0

 Chee Lim Cheung/MS/SP_SF Posts: 2 Registered: 12/7/04
Re: [mg4253] Help: Column/Row Vector
Posted: Jun 28, 1996 9:53 AM

Hi Joh,

Note that column and row matrices are special cases of matrices which are lists
of lists in Mathematica. In your case, the column matrix would be

x = {{x1}, {x2}}

which is a 2x1 matrix (each sublist inside the list signifies a row) and the
row matrix would be

y = {{y1, y2}}

which is a 1x2 matrix. You can see the output using MatrixForm.

The above procedure for writing column and row matrices are quite general and
applies to any number of elements.

I hope this helps.

To: mathgroup @ smc.vnet.net @ INTERNET
cc: (bcc: Chee Lim Cheung/MS/SP_SF)
From: khinast @ nld.chee.uh.edu @ INTERNET @ SP_SD
Date: 23/06/96 03:08:14 AM
Subject: [mg4253] Help: Column/Row Vector

Hi,

I have two vectors x=(x1,x2) and y = (y1,y1). How can I persuade Mathematica
that e.g. x is a column vector and y is a row vector, which is kind of
important for their multiplication .
I've studied the help page for hours, with no result. So could

khinast@nld.chee.uh.edu

Joh.