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Make rational matrix rref default to flint #39733

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Make rational matrix rref default to flint #39733

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10 changes: 4 additions & 6 deletions src/sage/matrix/matrix_rational_dense.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -1499,9 +1499,10 @@ cdef class Matrix_rational_dense(Matrix_dense):

- ``algorithm`` -- an optional specification of an algorithm. One of

- ``None``: (default) uses flint for small dimension and multimodular otherwise
- ``None``: (default) uses flint,

- ``'flint'``: use the flint library,
- ``'flint'``: use the flint library (which automatically chooses between Gaussian
elimination, multimodular, and fraction-free LU decomposition),

- ``'padic'``: an algorithm based on the IML `p`-adic solver,

Expand Down Expand Up @@ -1560,10 +1561,7 @@ cdef class Matrix_rational_dense(Matrix_dense):
self.check_mutability()

if algorithm is None:
if self._nrows <= 25 or self._ncols <= 25:
algorithm = 'flint'
else:
algorithm = 'multimodular'
algorithm = 'flint'

if algorithm == 'flint':
pivots = self._echelonize_flint()
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