Re: How to construct symmetric matrix from just a one half
- To: mathgroup at smc.vnet.net
- Subject: [mg110376] Re: How to construct symmetric matrix from just a one half
- From: Srikanth K S <sriperso at gmail.com>
- Date: Wed, 16 Jun 2010 05:36:34 -0400 (EDT)
*Here is a way, but there could be other elegant ways than this!
*In[8]:== mat1=={{1,0,0,0},{2,3,0,0},{4,9,5,0},{2,2,3,4}};
In[12]:== Union@@@MapThread[List,{mat1,MapThread[List,mat1]}]
Out[12]== {{0,1,2,4},{0,2,3,9},{0,3,4,5,9},{0,2,3,4}}*
*---
2010/6/15 dragec <culinovic at gmail.com>
> 1 0 0 0
> 2 3 0 0
> 4 9 5 0
> 2 2 3 4
>