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MathGroup Archive 1996

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Re: Help: Column/Row Vector

  • To: mathgroup at smc.vnet.net
  • Subject: [mg4333] Re: [mg4253] Help: Column/Row Vector
  • From: Chee Lim Cheung/MS/SP_SF <CheeLC at sp.ac.sg>
  • Date: Thu, 11 Jul 1996 00:57:53 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

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.

>From: khinast @ nld.chee.uh.edu @ INTERNET @ SP_SD
>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  
someone please help me. My email address is: 

khinast at nld.chee.uh.edu


Joh.



 



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