Re: Question about ArrayFlatten
- To: mathgroup at smc.vnet.net
- Subject: [mg112224] Re: Question about ArrayFlatten
- From: Bill Rowe <readnews at sbcglobal.net>
- Date: Sun, 5 Sep 2010 05:28:33 -0400 (EDT)
On 9/4/10 at 4:01 AM, lightnation at naver.com (lightnation) wrote:
>The coding below is not working. I don't know what is wrong. Please
>give me some advice.
>m1 = ConstantArray[0, {2 Length[genindex], 2 Length[genindex]}];
>m2 = ConstantArray[0, {Length[genindex], 2 Length[genindex]}];
>m3 = ConstantArray[0, {Length[genindex], Length[genindex]}];
>m4 = IdentityMatrix[Length[genindex]];
>Au1 = ArrayFlatten[{{m1}, {m2}, {m3, m4}}];
I am going to guess the result you are looking for is the output
that results from
ArrayFlatten[{{m3,m3},{m3,m3},{m3,m3},{m3,m4}}]