SciPy

scipy.linalg.expm

scipy.linalg.expm(A, q=None)[source]

Compute the matrix exponential using Pade approximation.

Parameters :

A : (N, N) array_like or sparse matrix

Matrix to be exponentiated.

Returns :

expm : (N, N) ndarray

Matrix exponential of A.

References

[R67]Awad H. Al-Mohy and Nicholas J. Higham (2009) “A New Scaling and Squaring Algorithm for the Matrix Exponential.” SIAM Journal on Matrix Analysis and Applications. 31 (3). pp. 970-989. ISSN 1095-7162

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