[Scilab-users] Question about expm function

Jean Rubagenga jean.rubagenga at gmail.com
Thu Feb 2 09:49:45 CET 2017


Hi,

I am trying to use expm() and do not get what I am expecting.

I enter A = [1,0.5,0.7;0.3,0.7,1;1,0,1]
and B = expm(A)
and get as result

B =

    4.1672519    1.3854159    2.8881517

    2.1672628    2.4007931    3.0513947
    3.1716359    0.6680066    3.96685.

I expected the matrix B elements to be exponents of corresponding elements
of matrix A. For example
B(1,1) = B(2,3) = B(3,1) = B(3,3) = 2.7182818

Could you please explain to me what is going on?

Thanks

Jean
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