[R] Complex Matrix Exponentials.

[Andrew]

Hello,

I was curious if there was a complex valued matrix exponential function 
available for R?  I have some Laplace transforms  of occupation times 
for a hidden Markov model.  The matrix exponential function in the msm 
package does not seem to handle complex values.  For example

 > MatrixExp(diag(1i,2))
     [,1] [,2]
[1,]    1    0
[2,]    0    1
Warning message:
imaginary parts discarded in coercion

Thanks in advance for your help,

Andrew Royal
University of Calgary