Compute an incomplete LU decomposition for a sparse, square matrix A.
The resulting object is an approximation to the inverse of A.
Parameters : | A :
drop_tol : float, optional
fill_factor : float, optional
drop_rule : str, optional
milu : str, optional
Remaining other options :
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Returns : | invA_approx : scipy.sparse.linalg.dsolve._superlu.SciPyLUType
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See also
Notes
To improve the better approximation to the inverse, you may need to increase fill_factor AND decrease drop_tol.
This function uses the SuperLU library.
References
[SLU] | SuperLU http://crd.lbl.gov/~xiaoye/SuperLU/ |