Returned 84 matches (100 formulae, 95 docs)
    Lookup 3.797 ms, Re-ranking 178.092 ms
    Found 74312 tuple postings, 27024 formulae, 8915 documents
[ formulas ] [ documents ] [ documents-by-formula ]

Doc 1
1.0000
6.6703
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Quadratic_function.html
a x 2 + b x + c = 0
a x 2 + b x + c
a x 2 + b x + c ,
y p = a x 2 + b x + c
y p = a x 2 + b x + c
f ( x ) = a x 2 + b x + c
f ( x ) = a x 2 + b x + c
f ( x ) = a x 2 + b x + c
f ( x ) = a x 2 + b x + c
y = ± a x 2 + b x + c
y = ± a x 2 + b x + c

Doc 2
1.0000
5.5895
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Quadratic_equation.html
a x 2 + b x + c = 0
a x 2 + b x + c = 0
a x 2 + b x + c = 0.
a x 2 + b x + c
a x 2 + b x ± c = 0 ,
x 2 + p x + q = 0 ,
x 2 + b x + c

Doc 3
1.0000
3.5385
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Monic_polynomial.html
a x 2 + b x + c = 0
x 2 + p x + q = 0
x 2 + 5 x + 6 = 0
x 2 + 7 x + 8 = 0
2 x 2 + 3 x + 1 = 0
2 x 2 + 3 x + 1 = 0
Doc 4
1.0000
2.0000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000007/Articles/Sridhara.html
a x 2 + b x + c = 0
a x 2 + b x + c = 0

Doc 5
1.0000
1.8966
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000012/Articles/Algebra.html
a x 2 + b x + c = 0
a x 2 + b x + c = 0 ,

Doc 6
1.0000
1.6812
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Elementary_algebra.html
a x 2 + b x + c = 0
x 2 + p x + q = 0

Doc 7
1.0000
1.0000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000008/Articles/Help:Displaying_a_formula.html
a x 2 + b x + c = 0

Doc 8
1.0000
1.0000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000005/Articles/Algebraic_solution.html
a x 2 + b x + c = 0

Doc 9
1.0000
1.0000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000009/Articles/Periodic_continued_fraction.html
a x 2 + b x + c = 0

Doc 10
1.0000
1.0000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Loss_of_significance.html
a x 2 + b x + c = 0

Doc 11
0.9744
0.9744
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Gerolamo_Cardano.html
a x 3 + b x + c = 0

Doc 12
0.8974
2.1987
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Quadratic_formula.html
a x 2 + b x + c = 0.
a x 2 + b x + c
y = a x 2 + b x + c ,
Doc 13
0.8966
3.1964
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000009/Articles/Solving_quadratic_equations_with_continued_fractions.html
a x 2 + b x + c = 0 ,
x 2 + b x + c = 0
x 2 + b x + c = 0
x 2 + b x + c = 0 ( b 0 )

Doc 14
0.8966
1.3671
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000012/Articles/Portal:Algebra::Selected_article::4.html
a x 2 + b x + c = 0 ,
f ( x ) = a x 2 + b x + c .

Doc 15
0.8966
0.8966
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Closed-form_expression.html
a x 2 + b x + c = 0 ,

Doc 16
0.7949
0.7949
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000014/Articles/Numeric_precision_in_Microsoft_Excel.html
a x 2 + b x + c = 0 .

Doc 17
0.7949
0.7949
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000008/Articles/Line–sphere_intersection.html
a d 2 + b d + c = 0

Doc 18
0.7949
0.7949
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000007/Articles/Reduction_of_order.html
a λ 2 + b λ + c = 0

Doc 19
0.7949
0.7949
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Huzita–Hatori_axioms.html
a s 2 + b s + c = 0

Doc 20
0.7632
4.3025
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Parabola.html
a x + b y + c = 0
y = a x 2 + b x + c
y = a x 2 + b x + c
y = a x 2 + b x + c
y = a x 2 + b x + c
y = a x 2 + b x + c
y = a x 2 + b x + c ,

Doc 21
0.7632
1.4455
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000006/Articles/Rational_trigonometry.html
a x + b y + c = 0
a x + b y + c = 0 ,

Doc 22
0.7632
0.7632
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Slope.html
a x + b y + c = 0

Doc 23
0.7632
0.7632
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Asymptote.html
a x + b y + c = 0

Doc 24
0.7632
0.7632
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000015/Articles/Möbius_plane.html
a x + b y + c = 0

Doc 25
0.7619
4.9768
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Discriminant.html
a x 2 + b x + c
a x 2 + b x + c
a x 2 + b x + c
a x 2 + b x + c
p ( x ) = a x 2 + b x + c
a x 3 + b x 2 + c x + d
a x 3 + b x 2 + c x + d
x 3 + b x 2 + c x + d

Doc 26
0.7619
4.3204
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Completing_the_square.html
a x 2 + b x + c
a x 2 + b x + c
a x 2 + b x + c
d x a x 2 + b x + c
x 2 + b x + c ,
a x 2 + b y 2 + c ,
x 2 + 6 x + 5 = 0 ,

Doc 27
0.7619
3.9563
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000015/Articles/Euler_substitution.html
a x 2 + b x + c
a x 2 + b x + c
a x 2 + b x + c
a x 2 + b x + c = a + x t
a x 2 + b x + c = ± x a + t
a x 2 + b x + c = x t ± c .
R ( x , a x 2 + b x + c ) d x

Doc 28
0.7619
1.8554
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000012/Articles/Integration_by_reduction_formulae.html
a x 2 + b x + c
a x 2 + b x + c
I n = ( a x 2 + b x + c ) n d x
Doc 29
0.7619
1.5238
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Factorization.html
a x 2 + b x + c
a x 2 + b x + c

Doc 30
0.7619
1.5238
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/MathML.html
a x 2 + b x + c
a x 2 + b x + c

Doc 31
0.7619
1.3619
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000015/Articles/GEORGE_(programming_language).html
a x 2 + b x + c
y = a x 2 + b x + c

Doc 32
0.7619
0.7619
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Bode_plot.html
a x 2 + b x + c

Doc 33
0.7619
0.7619
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Coefficient.html
a x 2 + b x + c

Doc 34
0.7619
0.7619
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Algebraic_number.html
a x 2 + b x + c

Doc 35
0.7619
0.7619
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Irreducible_polynomial.html
a x 2 + b x + c

Doc 36
0.7213
0.7213
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Digital_filter.html
a x + b x + c

Doc 37
0.7179
0.7179
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/Periodic_points_of_complex_quadratic_mappings.html
A x 2 + B x + C = 0

Doc 38
0.7179
0.7179
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Quadratic_Gauss_sum.html
a n 2 + b n + q = 0

Doc 39
0.6988
1.3292
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000015/Articles/Distance_between_two_straight_lines.html
a x + b y + c 1 = 0
a x + b y + c 2 = 0 ,

Doc 40
0.6988
1.3292
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/Parallel_(geometry).html
a x + b y + c 1 = 0
a x + b y + c 2 = 0 ,

Doc 41
0.6857
1.6730
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000007/Articles/Variable_(mathematics).html
a x 2 + b x + c ,
x a x 2 + b x + c ,
a x 3 + b x 2 + c x + d = 0 ,
Doc 42
0.6857
1.2250
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000013/Articles/Constant_(mathematics).html
a x 2 + b x + c ,
x a x 2 + b x + c ,

Doc 43
0.6857
1.1039
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Seki_Takakazu.html
a x 2 + b x + c .
a x + b = 0

Doc 44
0.6857
0.6857
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Constant_term.html
a x 2 + b x + c ,

Doc 45
0.6824
0.6824
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000012/Articles/Tangent_lines_to_circles.html
a x + b y + c = 0 ,

Doc 46
0.6824
0.6824
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Linear_equation.html
a x + b y + c = 0 ,

Doc 47
0.6812
2.2044
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000009/Articles/History_of_algebra.html
x 2 + p x + q = 0
x 2 + p x + q = 0
x + a x + b x = c
x + a x + b x = c

Doc 48
0.6667
2.0926
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Quintic_function.html
x 5 + a x + b = 0
x 5 + a x + b = 0 ,
x 5 + a x + b
x 5 + a x 2 + b

Doc 49
0.6667
0.6667
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000008/Articles/Erland_Samuel_Bring.html
x 5 + p x + q = 0

Doc 50
0.6500
0.6500
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Abel–Ruffini_theorem.html
a x 2 + b x + c = 0 , a 0

Doc 51
0.6301
0.6301
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000014/Articles/Jigu_Suanjing.html
x 4 + p x 2 + q = 0

Doc 52
0.6000
3.0000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000015/Articles/Laguerre_plane.html
y = a x 2 + b x + c
y = a x 2 + b x + c
y = a x 2 + b x + c
y = a x 2 + b x + c
z = a x 2 + b x + c

Doc 53
0.6000
1.2000
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000012/Articles/Benz_plane.html
y = a x 2 + b x + c
y = a x 2 + b x + c

Doc 54
0.5974
0.5974
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000006/Articles/Nested_radical.html
x 3 + p x + q = 0 ,

Doc 55
0.5714
1.4286
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Diophantus.html
a x 2 + b x = c
a x 2 = b x + c
a x 2 + c = b x
Doc 56
0.5714
0.5714
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000005/Articles/Lenstra–Lenstra–Lovász_lattice_basis_reduction_algorithm.html
a r 2 + b r + c

Doc 57
0.5714
0.5714
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Brahmagupta.html
a x 2 + b x = c

Doc 58
0.5714
0.5714
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000005/Articles/Indian_mathematics.html
a x 2 + b x = c

Doc 59
0.5600
2.9683
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Cubic_function.html
x 3 + b x 2 + c x + d = 0
x 3 + b x 2 + c x + d = 0
a x 3 + b x 2 + c x + d = 0
a x 3 + b x 2 + c x + d = 0
a x 3 + b x 2 + c x + d = 0.
a x 3 + b x 2 + c x + d = 0 ( 1 )
Doc 60
0.5472
0.5472
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Linear_algebra.html
λ : a x + b y + c = 0 ,

Doc 61
0.5393
0.5393
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000015/Articles/Parent_function.html
y = a x 2 + b x + c ,

Doc 62
0.5393
0.5393
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Curve_fitting.html
y = a x 2 + b x + c .

Doc 63
0.5366
0.5366
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/Cyclonic_separation.html
x ′′ + c 1 x + c 2 = 0

Doc 64
0.5306
0.5306
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Field_trace.html
a x 2 + b x + c = 0 , with a 0 ,

Doc 65
0.5217
1.0217
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000011/Articles/Permutation_polynomial.html
g ( x ) = a x 2 + b x + c
a x 2 + b x

Doc 66
0.5217
0.5217
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/Vieta's_formulas.html
P ( x ) = a x 2 + b x + c

Doc 67
0.5217
0.5217
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/Polynomial_remainder_theorem.html
f ( x ) = a x 2 + b x + c

Doc 68
0.5217
0.5217
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Prime_number.html
f ( n ) = a x 2 + b x + c

Doc 69
0.5217
0.5217
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Parameter.html
f ( x ) = a x 2 + b x + c

Doc 70
0.5000
1.7898
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000007/Articles/Bring_radical.html
x 5 + d 1 x + d 0 = 0
x 5 + d 1 x + d 0 = 0
a x N + b x 2 + c = 0 , N 1 ( mod 2 )
x 5 + c 2 x 2 + c 1 x + c 0 = 0

Doc 71
0.4956
0.9469
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000009/Articles/Casus_irreducibilis.html
a x 3 + b x 2 + c x + d = 0
a x 3 + b x 2 + c x + d = 0.

Doc 72
0.4928
0.4928
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000016/Articles/Draft:Leaving_Certificate_Mathematics_Ordinary_Level.html
x 2 + 2 x + 5 = 0

Doc 73
0.4928
0.4928
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000011/Articles/Extraneous_and_missing_solutions.html
x 2 + 4 x + 4 = 0

Doc 74
0.4706
0.8471
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000009/Articles/Distance_from_a_point_to_a_plane.html
a x + b y + c z
a x + b y + c z = d

Doc 75
0.4706
0.4706
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000009/Articles/Portal:Mathematics::Selected_article::31.html
f ( x ) = a x 2 + b x + c .

Doc 76
0.4660
0.4660
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Normal_distribution.html
f ( x ) = e a x 2 + b x + c

Doc 77
0.4632
0.4632
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000007/Articles/Tridiagonal_matrix_algorithm.html
a 1 x n + b 1 x 1 + c 1 x 2

Doc 78
0.4571
0.4571
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Nagell–Lutz_theorem.html
y 2 = x 3 + a x 2 + b x + c

Doc 79
0.4533
0.8819
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000007/Articles/Babylonian_mathematics.html
a x 3 + b x 2 = c .
x 2 + b x = c

Doc 80
0.4400
0.4400
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000012/Articles/Like_terms.html
a x + b x

Doc 81
0.4337
0.4337
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/List_of_important_publications_in_mathematics.html
a x 2 + b y 2 + c x y

Doc 82
0.4337
0.4337
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Joseph-Louis_Lagrange.html
a x 2 + b y 2 + c x y

Doc 83
0.3916
1.7683
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Quartic_function.html
x 4 + a x 3 + b x 2 + c x + d = 0
x 4 + a x 3 + b x 2 + c x + d = 0 ,
a x 4 + b x 3 + c x 2 + d x + e = 0
a x 4 + b x 3 + c x 2 + d x + e = 0
a x 4 + b x 3 + c x 2 + d x + e = 0 ,

Doc 84
0.3765
1.1294
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Incidence_(geometry).html
a x + b y + c z = 0
a x + b y + c z = 0
a x + b y + c z = 0
Doc 85
0.3765
0.3765
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000016/Articles/Intersection_(Euclidean_geometry).html
a x + b y + c z = d

Doc 86
0.3765
0.3765
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000004/Articles/Transformation_matrix.html
a x + b y + c z = 0

Doc 87
0.3765
0.3765
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Duality_(projective_geometry).html
a x + b y + c z = 0

Doc 88
0.3710
0.6769
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000003/Articles/Catastrophe_theory.html
V = x 5 + a x 3 + b x 2 + c x
V = x 4 + a x 2 + b x

Doc 89
0.3600
0.3600
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Quadratic_reciprocity.html
a x 2 + b y 2 + c z 2 = 0

Doc 90
0.3600
0.3600
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Number_theory.html
a x 2 + b y 2 + c z 2 = 0

Doc 91
0.3396
0.3396
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Normal_(geometry).html
a x + b y + c z + d = 0

Doc 92
0.3396
0.3396
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000001/Articles/Equation.html
a x + b y + c z + d = 0

Doc 93
0.3396
0.3396
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000002/Articles/Plane_(geometry).html
a x + b y + c z + d = 0

Doc 94
0.3357
0.3357
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000006/Articles/Hilbert's_thirteenth_problem.html
x 7 + a x 3 + b x 2 + c x + 1 = 0

Doc 95
0.3259
0.3259
testing/NTCIR12_MathIR_WikiCorpus_v2.1.0/MathTagArticles/wpmath0000014/Articles/Poincaré_disk_model.html
x 2 + y 2 + a x + b y + 1 = 0 ,