Re: How to construct a matrix like this ?

*To*: mathgroup at smc.vnet.net*Subject*: [mg50903] Re: [mg50895] How to construct a matrix like this ?*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Mon, 27 Sep 2004 00:42:10 -0400 (EDT)*Reply-to*: hanlonr at cox.net*Sender*: owner-wri-mathgroup at wolfram.com

Clear[myArray]; myArray[a_Symbol, {m_Integer?Positive, n_Integer?Positive}] := Table[ToExpression[ ToString[a]<>ToString[10i+j]], {i,m},{j,n}] /; m <10 && n<10; myArray[a,{2,2}] {{a11, a12}, {a21, a22}} Bob Hanlon > > From: zhoukm at hotmail.com To: mathgroup at smc.vnet.net > Date: 2004/09/26 Sun AM 05:32:12 EDT > To: mathgroup at smc.vnet.net > Subject: [mg50903] [mg50895] How to construct a matrix like this ? > > With Array[a, {2,2}] I can get an array like: > | a[1,1] a[1,2] | > | a[2,1] a[2,2] |. > But occasionally I want matrix like: > | a11 a12 | > | a21 a22 | > I remember I once figured out a way to do it but now I forgot. Anyone > can give me a hand? > > Regards > >