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z3/src/math/realclosure/rcf.pyg
Leonardo de Moura eea3384106 Add lazy normalization for algebraic extension values. Increase default max_precision to 128.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-01-15 16:35:36 -08:00

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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, 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")
))