cupyx.scipy.linalg.expm#

cupyx.scipy.linalg.expm(a)[source]#

Compute the matrix exponential.

Parameters

a (ndarray, 2D) –

Return type

matrix exponential of a

Notes

Uses (a simplified) version of Algorithm 2.3 of 1: a [13 / 13] Pade approximant with scaling and squaring.

Simplifications:

  • we always use a [13/13] approximate

  • no matrix balancing

References

1

N. Higham, SIAM J. MATRIX ANAL. APPL. Vol. 26(4), p. 1179 (2005) https://doi.org/10.1137/04061101X