Re: How can I perform Matrix comparison?Can any one with kindness help

*To*: mathgroup at smc.vnet.net*Subject*: [mg114818] Re: How can I perform Matrix comparison?Can any one with kindness help*From*: Jaebum Jung <jaebum at wolfram.com>*Date*: Fri, 17 Dec 2010 23:49:14 -0500 (EST)

You could define a function like the following: mGreater[a_, b_] := MatrixQ[MapThread[Greater, {a, b}, 2], TrueQ] a = {{2, 3}, {4, 5}}; b = {{1, 2}, {2, 3}}; In[32]:= mGreater[a, b] Out[32]= True In[33]:= mGreater[b, a] Out[33]= False - Jaebum ----- Original Message ----- From: "fmingu" <fmingu at 163.com> To: mathgroup at smc.vnet.net Sent: Friday, December 17, 2010 2:29:11 AM Subject: [mg114818] [mg114792] How can I perform Matrix comparison?Can any one with kindness help I am using mathematica for practical purpose. I wonder how can I perform Matrix comparison. For instance: a={{2,3},{4,5}}; b={{1,2},{2,3}}; a>b I want the result is True. But it seems that Mathematica can not recognize it. I do not know how I can solve it? Are there any additional package to be added? Can any one with kindness help me?