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| # | Thing | Description | Topic | Up/Down/Net | Score ▼ | |
|---|---|---|---|---|---|---|
| 1 | Parabola | Plane curve: conic section | Mathematics | +2 / -0 / +2 | 0.545455 | |
| 2 | Mathematical logic | Subfield of mathematics | Mathematics | +2 / -0 / +2 | 0.545455 | |
| 3 | Knot theory | Study of mathematical knots | Mathematics | +2 / -0 / +2 | 0.545455 | |
| 4 | Covariance | Measure of the joint variability | Mathematics | +2 / -0 / +2 | 0.545455 | |
| 5 | Golden ratio | Number, approximately 1.618 | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 6 | Algebra | Branch of mathematics | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 7 | Cardinality | Size of a set in mathematics | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 8 | Permutation | Mathematical version of an order change | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 9 | Design of experiments | Design of tasks | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 10 | Vector calculus | Calculus of vector-valued functions | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 11 | Algebraic geometry | Branch of mathematics | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 12 | Bayes' theorem | Mathematical rule for inverting probabilities | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 13 | Natural number | Number used for counting | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 14 | Correlation | Statistical relationship | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 15 | Mathematical proof | Reasoning for mathematical statements | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 16 | Integer | Number in {..., –2, –1, 0, 1, 2, ...} | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 17 | Hilbert's problems | 23 mathematical problems stated in 1900 | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 18 | Integral | Operation in calculus | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 19 | Real number | Number representing a continuous quantity | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 20 | Exponential function | Mathematical function, denoted exp(x) or e^x | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 21 | Vector space | Algebraic structure in linear algebra | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 22 | Mathematical optimization | Study of mathematical algorithms for optimization problems | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 23 | Game theory | Mathematical models of strategic interactions | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 24 | Fibonacci sequence | Numbers obtained by adding the two previous ones | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 25 | Formal language | Sequence of words formed by specific rules | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 26 | Analytic geometry | Study of geometry using a coordinate system | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 27 | Homological algebra | Branch of mathematics | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 28 | Subtraction | One of the four basic arithmetic operations | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 29 | Compact space | Type of mathematical space | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 30 | Regression analysis | Set of statistical processes for estimating the relationships among variables | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 31 | Series (mathematics) | Infinite sum | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 32 | Polar coordinate system | Coordinates comprising a distance and an angle | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 33 | Union (set theory) | Set of elements in any of some sets | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 34 | Ordinary differential equation | Differential equation containing derivatives with respect to only one variable | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 35 | Theoretical computer science | Subfield of computer science and mathematics | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 36 | Standard error | Statistical property | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 37 | Mathematical constant | Fixed number that has received a name | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 38 | Homotopy | Continuous deformation between two continuous functions | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 39 | Area | Size of a two-dimensional surface | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 40 | P versus NP problem | Unsolved problem in computer science | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 41 | Data compression | Compact encoding of digital data | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 42 | Arabic numerals | Symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 43 | Abelian group | Commutative group (mathematics) | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 44 | Number | Used to count, measure, and label | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 45 | E (mathematical constant) | 2.71828...; base of natural logarithms | Mathematics | +1 / -0 / +1 | 0.523810 | |
| 46 | Equation | Mathematical formula expressing equality | Mathematics | +1 / -1 / 0 | 0.500000 | |
| 47 | 0 | Number | Mathematics | +0 / -0 / 0 | 0.500000 | |
| 48 | 1 | Natural number | Mathematics | +0 / -0 / 0 | 0.500000 | |
| 49 | Abstract algebra | Branch of mathematics | Mathematics | +0 / -0 / 0 | 0.500000 | |
| 50 | Abstract machine | Theoretical computer used for defining a model of computation | Mathematics | +0 / -0 / 0 | 0.500000 |
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