Dear Forum, dear Marek Mitros,
Is there way to calculate exp(M) for matrix M in GAP ?
That unfortunately is no such functionality, though it probably
wouldn't be too hard to implement for nilpotent matrices or over
finite fields.
It seems there is no real numbers in GAP and no way to present matrix
exp([[0,-1],[1,0]])=[[cos(1), -sin(1)], [sin(1), cos(1)]]
indeed there are no real numbers (and only a very rudimentary version
of floating point numbers with fixed accuracy) implemented. If your
focus is working over the reals you will probably be better off with
using system like Maple, Mathematica or MuPAD.
Sorry,
Alexander Hulpke
-- Colorado State University, Department of Mathematics,
Weber Building, 1874 Campus Delivery, Fort Collins, CO 80523-1874, USA
email: [EMAIL PROTECTED], Phone: ++1-970-4914288
http://www.math.colostate.edu/~hulpke
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