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MathGroup Archive 1998

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Re: Matrix Problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg15253] Re: [mg15247] Matrix Problem
  • From: "Jorge Zickermann" <jzickermann at mail.EUnet.pt>
  • Date: Mon, 28 Dec 1998 02:37:50 -0500
  • Sender: owner-wri-mathgroup at wolfram.com

Peter,

    If you have an output such as defined by the following t, you can
place it in the form you want by Flattening and then Partitioning the
list into lists with the number of elements you want. Maybe its not the
most elegant but it works.
    
    Jorge
   
     As an example;
    
In[55]:=

t = {{{1.1547},{0},{0},{0}},{{0},{0.755929},{0},{0}},
  {{-0.258199},{0},{0.774597},{0}},{{0.},{-0.169031},{0.},{1.18322}}}

Out[55]=
{{{1.1547},{0},{0},{0}},{{0},{0.755929},{0},{0}},{{-0.258199},{0},{0.774597}
,{
      0}},{{0.},{-0.169031},{0.},{1.18322}}}

In[56]:=
t=Partition[Flatten[t],4]

Out[56]=
{{1.1547,0,0,0},{0,0.755929,0,0},{-0.258199,0,0.774597,0},{0.,-0.169031,0.,
    1.18322}}
----------
>From: Peter <phuesser at bluewin.ch>
To: mathgroup at smc.vnet.net
>To: mathgroup at smc.vnet.net
>Subject: [mg15253] [mg15247] Matrix Problem
>Date: Sun, Dec 27, 1998, 8:58 am
>

>output:
>
>t=
>  N[GramSchmidt[{ve[1],ve[2],ve[3],ve[4]},
>    InnerProduct ->
>     (skproduct[#1, #2]&)]]
>
>{{{1.1547},{0},{0},{0}},{{0},{0.755929},{0},{0}},
>  {{-0.258199},{0},{0.774597},{0}},{{0.},{-0.169031},{0.},{1.18322}}}
>
>But I would like to have t in the following form:
>
>{{1.1547,0,0,0},{0,0.755929,0,0},
>  {-0.258199,0,0.774597,0},{0.,-0.169031,0.,1.18322}}
>
>so t should be a real matrix. How can I make the innerst brackets
>disapear ?
>
>Thank's for any help
>
>                                 pedro
>


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