How to construct symmetric matrix from just a one half matrix

*To*: mathgroup at smc.vnet.net*Subject*: [mg110362] How to construct symmetric matrix from just a one half matrix*From*: dragec <culinovic at gmail.com>*Date*: Tue, 15 Jun 2010 02:29:55 -0400 (EDT)

please help me with simple to apply function that will construct symmetric matrix from given just a half matrix with diagonal. Eg: From: 1 0 0 0 2 3 0 0 4 9 5 0 2 2 3 4 To give: 1 2 4 2 2 3 9 2 4 9 5 3 2 2 3 4