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Add lazy normalization for algebraic extension values. Increase default max_precision to 128.

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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Leonardo de Moura 2013-01-15 16:35:36 -08:00
parent 217c8375ce
commit eea3384106
2 changed files with 35 additions and 4 deletions
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4
src/math/realclosure/rcf.pyg
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@ -5,4 +5,6 @@ def_module_params('rcf',
('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")))
('max_precision', UINT, 128, "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"),
('lazy_algebraic_normalization', BOOL, True, "during sturm-seq and square-free polynomial computations, only normalize algebraic polynomial expressions when the definining polynomial is monic")
))