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Bench with & without box(1)-consistency algorithm
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@ -92,14 +92,15 @@ benchGroups :: [ ( String, NE.NonEmpty TestCase ) ]
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benchGroups =
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[ ( "ellipse"
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, NE.fromList
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[ ellipseTestCase opts ("ε=" ++ show narrowAbs)
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[ ellipseTestCase opts ("ε_bis=" ++ show ε_bis ++ if doBox1 then "box(1)" else "")
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( 0, 1 ) pi
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( defaultStartBoxes [ 0 .. 3 ] )
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| narrowAbs <- [ 5e-2, 1e-6 ]
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| ε_bis <- [ 1e-6, 5e-6, 1e-5, 5e-5, 1e-4, 5e-4, 1e-4, 5e-4, 1e-3, 5e-3, 1e-2, 5e-2, 0.1, 0.2, 0.3 ]
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, doBox1 <- [ False, True ]
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, let opts =
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RootIsolationOptions
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{ rootIsolationAlgorithms =
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defaultRootIsolationAlgorithms minWidth narrowAbs
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defaultRootIsolationAlgorithms minWidth ε_bis doBox1
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}
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]
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)
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@ -102,7 +102,7 @@ newtype RootIsolationOptions n d
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defaultRootIsolationOptions :: BoxCt n d => RootIsolationOptions n d
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defaultRootIsolationOptions =
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RootIsolationOptions
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{ rootIsolationAlgorithms = defaultRootIsolationAlgorithms minWidth ε_eq
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{ rootIsolationAlgorithms = defaultRootIsolationAlgorithms minWidth ε_eq True
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}
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where
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minWidth = 1e-5
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@ -114,10 +114,11 @@ defaultRootIsolationAlgorithms
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. BoxCt n d
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=> Double -- ^ minimum width of boxes (don't bisect further)
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-> Double -- ^ threshold for progress
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-> Bool -- ^ do box1
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-> BoxHistory n
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-> Box n
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-> Either String ( NE.NonEmpty ( RootIsolationAlgorithmWithOptions n d ) )
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defaultRootIsolationAlgorithms minWidth ε_eq history box =
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defaultRootIsolationAlgorithms minWidth ε_eq doBox1 history box =
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case history of
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lastRoundBoxes : _
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-- If, in the last round of strategies, we didn't try bisection...
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@ -133,7 +134,8 @@ defaultRootIsolationAlgorithms minWidth ε_eq history box =
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-- Otherwise, do a normal round.
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-- Currently: we try an interval Gauss–Seidel step followed by box(1)-consistency.
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_ -> Right $ AlgoWithOptions @GaussSeidel _gsOptions
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NE.:| [ AlgoWithOptions @Box1 _box1Options | not verySmall ]
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NE.:| [ AlgoWithOptions @Box1 _box1Options
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| doBox1 && not verySmall ]
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where
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verySmall = and $ ( \ cd -> width cd <= minWidth ) <$> coordinates box
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