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robin
Posts:
38
Registered:
5/29/10


Re: Computation of the matrix exponential
Posted:
May 29, 2010 12:25 PM


"luca" <luca.frammolini@gmail.com> wrote in message news:fc0cf550de594e48ac31bf24737964ab@f14g2000vbn.googlegroups.com...  Hi,   i have the following problem: given a 3x3 real matrix, compute exp(A).   I need a really fast way to do this. I have searched a bit with  google, but it seems to me that  computing the matrix exponential is not so simple, at least if your  matrix does not have a special  structure (for example A=diagonal matrix).
Two procedures in PL/I are to be found at:
http://members.dodo.com.au/robin51/expmat.inc



