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MathGroup Archive 2000

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Could we build matrix with codition instruction?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg23314] Could we build matrix with codition instruction?
  • From: Coase Yang <cnc at ms6.hinet.net>
  • Date: Mon, 1 May 2000 18:00:15 -0400 (EDT)
  • Organization: Ntu
  • Sender: owner-wri-mathgroup at wolfram.com

Dear All:

I want to construct an 4*4 upper triangular matrix with
conditional instruction, a[i,j]:
if j-i>=0, then a[[i,j]]=1
if j-i<0, then a[[i,j]]=0
Could anyone tell me how I could build this matrix with
list or Table form by conditional instruction inside?

Thank you very much.

Coase Yang


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