Re: [R] kronecker sum

2011-06-05 Thread Ted Harding
On 05-Jun-11 13:36:18, Lara Poplarski wrote: > Dear All, > Could someone please suggest how to find the Kronecker sum > of two 2x2 matrices, > i.e. given two matrices: > > -A A > a -a > > and > > -B B > b -b > > I need: > > -A-BA B 0 > a -a-B 0 B > b

Re: [R] kronecker sum

2011-06-05 Thread Duncan Murdoch
On 11-06-05 9:36 AM, Lara Poplarski wrote: Dear All, Could someone please suggest how to find the Kronecker sum of two 2x2 matrices, i.e. given two matrices: -A A a -a and -B B b -b I need: -A-BA B 0 a -a-B 0 B b0 -A-b A 0b

[R] kronecker sum

2011-06-05 Thread Lara Poplarski
Dear All, Could someone please suggest how to find the Kronecker sum of two 2x2 matrices, i.e. given two matrices: -A A a -a and -B B b -b I need: -A-BA B 0 a -a-B 0 B b0 -A-b A 0b a-a-b Many thanks, Lara [[alternat