Mercurial > octave
changeset 32208:d350f3e1faf2
maint: merge stable to default
| author | Rik <rik@octave.org> |
|---|---|
| date | Tue, 18 Jul 2023 17:46:09 -0700 |
| parents | b8e1440b3b29 (current diff) b73ebf017461 (diff) |
| children | 20c84bfef1af |
| files | libinterp/corefcn/__ichol__.cc |
| diffstat | 2 files changed, 5 insertions(+), 3 deletions(-) [+] |
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--- a/libinterp/corefcn/__ichol__.cc Mon Jul 17 11:47:52 2023 -0700 +++ b/libinterp/corefcn/__ichol__.cc Tue Jul 18 17:46:09 2023 -0700 @@ -27,6 +27,8 @@ # include "config.h" #endif +#include <limits> + #include "oct-locbuf.h" #include "oct-norm.h" @@ -57,7 +59,7 @@ bool ichol_checkpivot_complex (Complex pivot) { - if (pivot.imag () != 0) + if (fabs (pivot.imag ()) > std::numeric_limits<double>::epsilon()) error ("ichol: non-real pivot encountered. The matrix must be Hermitian."); else if (pivot.real () < 0) error ("ichol: negative pivot encountered");
--- a/scripts/sparse/pcg.m Mon Jul 17 11:47:52 2023 -0700 +++ b/scripts/sparse/pcg.m Tue Jul 18 17:46:09 2023 -0700 @@ -616,8 +616,8 @@ %! b = A * ones (N, 1); %! M2 = chol (A + 0.1 * eye (N)); # Factor of a perturbed matrix %! M = M2' * M2; -%! Hermitian_A = ishermitian (A); -%! Hermitian_M = ishermitian (M); +%! Hermitian_A = ishermitian (A, eps); # AVX optimization can cause matrix +%! Hermitian_M = ishermitian (M, eps); # to miss being Hermitian by eps. %! [x, flag] = pcg (A, b, [], 2*N, M); %! assert (Hermitian_A, true); %! assert (Hermitian_M, true);