Replacing part of a matrix by another
- To: mathgroup at smc.vnet.net
- Subject: [mg5588] Replacing part of a matrix by another
- From: "Lidar (Hamburger) dani" <dani at fh.huji.ac.il>
- Date: Fri, 27 Dec 1996 01:59:01 -0500
- Sender: owner-wri-mathgroup at wolfram.com
Given a matrix M and a smaller matrix L, what is an elegant way to replace a
submatrix of M by L, at some specified position {p,q}?
For example:
given:
M = Array[m,{5,5}]
L = Array[l,{2,2}]
{p,q}={2,3}
L should replace {{m[2,3],m[2,4]},{m[3,3],m[3,4]}}.
Thanks,
Dani