Matrix Operator form using Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg53198] Matrix Operator form using Mathematica*From*: "Pratik Desai" <pdesai1 at umbc.edu>*Date*: Tue, 28 Dec 2004 23:12:17 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

Hello all, How do I define an operator embedded in a matrix and functions as...well........an operator azero={{0,1},{1,0.05}}; aone={{-1,0},{0,(k)}}; (*k is the second order differential operator with respect to x d,xx, Is there a way to define this in mathematica *) Thanks Pratik Desai