Re: e^A (*A is a matrix)

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Re: e^A (*A is a matrix)*From*: keiper*Date*: Tue, 17 Mar 92 06:15:27 CST

>>Does anybody have a routine to do e^A where A is atleast a 4 by 4 matrix ? > >What about the "standard" procedure of writing A = MLM^-1 where L is the >diagaonal matrix of the eigenvalues of A and M is the matrix of eigenvecors? Or you could just use MatrixExp[ ] since that is what it is intended for. Jerry B. Keiper keiper at wri.com