Re: Row vs. Column Vectors (or Matrices)
- To: mathgroup at smc.vnet.net
- Subject: [mg33936] Re: Row vs. Column Vectors (or Matrices)
- From: adam.smith at hillsdale.edu (Adam Smith)
- Date: Tue, 23 Apr 2002 07:14:46 -0400 (EDT)
- References: <aa05ug$25i$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
See if the following is what you want
In[1]:=
vector1 = {a,b,c}
Out[1]=
{a,b,c}
In[2]:=
vector2 = {c,d,e}
Out[2]=
{c,d,e}
In[3]:=
Outer[Times,vector1,vector2]
Out[3]=
{{a*c, a*d, a*e}, {b*c, b*d, b*e}, {c^2, c*d, c*e}}
In[4]:=
MatrixForm[Outer[Times,vector1,vector2]]
Note that MatrixForm is such a so-called wrapper that essentially just
changes the way things display on the screen.
It is not necessary to put the 2nd vector in a 1-column format due to
the construction of the Outer[] function.
John Resler <John-Resler at kscable.com> wrote in message news:<aa05ug$25i$1 at smc.vnet.net>...
> Hi,
> I'm new to Mathematica and am doing a little linear algebra. I am
> aware of the MatrixForm[m]
> function but I know of no way to create a row vector eg. [ 1.0 2.0 3.0
> ] * [ 1.0
>
> 2.0
>
> 3.0].
>
> Can someone point me in the right direction? Thanks ahead of time.
>
> -John