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Use clean_denominators before root isolation

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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Leonardo de Moura 2013-01-12 20:43:17 -08:00
parent 2b5883454c
commit be2bf861c7
2 changed files with 60 additions and 23 deletions
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1
src/math/realclosure/rcf.pyg
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@ -2,6 +2,7 @@ def_module_params('rcf',
description='real closed fields',
export=True,
params=(('use_prem', BOOL, True, "use pseudo-remainder instead of remainder when computing GCDs and Sturm-Tarski sequences"),
('clean_denominators', BOOL, True, "clean denominators before root isolation"),
('initial_precision', UINT, 24, "a value k that is the initial interval size (as 1/2^k) when creating transcendentals and approximated division"),
('inf_precision', UINT, 24, "a value k that is the initial interval size (i.e., (0, 1/2^l)) used as an approximation for infinitesimal values"),
('max_precision', UINT, 64, "during sign determination we switch from interval arithmetic to complete methods when the interval size is less than 1/2^k, where k is the max_precision")))