This script solves the system Ax=b, where A is given in terms of its LU factors plus a rank-2 update.
A, L, and U must all be nonsingular. Solves the linear system in O(n^2) operations.
Greg von Winckel (2023). Rank-2 update to LU Factorization (https://www.mathworks.com/matlabcentral/fileexchange/8270-rank-2-update-to-lu-factorization), MATLAB Central File Exchange. Retrieved .
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