Compute the matrix exponential using Pade approximation.
Parameters: | A : (N, N) array_like or sparse matrix
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Returns: | expm : (N, N) ndarray
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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 |