This is last axis extension. bdiag=: [ , #&[EMAIL PROTECTED]:@[EMAIL PROTECTED] ,"1 ] (i.2 4) bdiag (i.3 2) 0 1 2 3 0 0 4 5 6 7 0 0 0 0 0 0 0 1 0 0 0 0 2 3 0 0 0 0 4 5 >bdiag&.>/ (i.1 2) ; (i.2 4) ; (i.3 2) 0 1 0 0 0 0 0 0 0 0 0 1 2 3 0 0 0 0 4 5 6 7 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 3 0 0 0 0 0 0 4 5
----- Original Message ---- From: Henry Rich <[EMAIL PROTECTED]> To: Programming forum <[email protected]> Sent: Thursday, June 22, 2006 3:25:30 PM Subject: RE: [Jprogramming] Block-Diagonal Matrices For 2 matrices, M1 ((+&# {. [) ,. ([EMAIL PROTECTED]&# {. ])) M2 Henry Rich > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Leigh > J. Halliwell > Sent: Thursday, June 22, 2006 2:33 PM > To: [email protected] > Subject: [Jprogramming] Block-Diagonal Matrices > > Dear J Forum: > I have two matrices M1 and M2. How do I create a matrix that is > block-diagonal in them (zero elsewhere)? Thanks. > Sincerely, > Leigh > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
