Re: mirror image of a square matrix

*To*: mathgroup at smc.vnet.net*Subject*: [mg66345] Re: mirror image of a square matrix*From*: Bill Rowe <readnewsciv at earthlink.net>*Date*: Wed, 10 May 2006 06:33:53 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

On 5/9/06 at 2:35 AM, rv15i at yahoo.se (ravi) wrote: >Let me define the mirror image of a matrix as the operation of >flipping the columns such that the last column becomes the first, >the second last becomes the second and so on. I would like to know >if this can be done simpler than as follows: >mat=Table[Random[],{n},{n}] >matR=Transpose[Reverse[Transpose[mat]]] >Are there any built in functions for operations like these? The Transpose operations are not needed simply Map Reverse to each row. That is: In[3]:= mat=Table[Random[],{4},{4}]; Transpose[Reverse[Transpose[mat]]]==Reverse/@mat Out[4]= True -- To reply via email subtract one hundred and four