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300 things · 153 votes cast · add yours
All | Arts | Biology and health sciences | Everyday life | Geography | History | Mathematics | People | Philosophy and religion | Physical sciences | Society and social sciences | Technology
| # | Thing | Description | Topic | For | Against | Net | |
|---|---|---|---|---|---|---|---|
| 251 | Riemannian geometry | Branch of differential geometry | Mathematics | 0 | 0 | 0 | |
| 252 |  | Riemannian manifold | Smooth manifold with an inner product on each tangent space | Mathematics | 0 | 0 | 0 |
| 253 |  | Right angle | 90° angle (π/2 radians) | Mathematics | 0 | 0 | 0 |
| 254 | Ring (mathematics) | Algebraic structure with addition and multiplication | Mathematics | 0 | 0 | 0 | |
| 255 | Ring theory | Branch of algebra | Mathematics | 0 | 0 | 0 | |
| 256 |  | Roman numerals | Numbers in the Roman numeral system | Mathematics | 0 | 0 | 0 |
| 257 | Russell's paradox | Paradox in set theory | Mathematics | 0 | 0 | 0 | |
| 258 |  | Sampling (statistics) | Selection of data points in statistics | Mathematics | 0 | 0 | 0 |
| 259 | Scientific notation | Concise notation for large or small numbers | Mathematics | 0 | 0 | 0 | |
| 260 |  | Sequence | Finite or infinite ordered list of elements | Mathematics | 0 | 0 | 0 |
| 261 | Series (mathematics) | Infinite sum | Mathematics | 0 | 0 | 0 | |
| 262 |  | Set (mathematics) | Collection of mathematical objects | Mathematics | 0 | 0 | 0 |
| 263 |  | Set theory | Branch of mathematics that studies sets | Mathematics | 0 | 0 | 0 |
| 264 |  | Shape | Form of an object | Mathematics | 0 | 0 | 0 |
| 265 | Sheaf (mathematics) | Tool to track locally defined data attached to the open sets of a topological space | Mathematics | 0 | 0 | 0 | |
| 266 |  | Sphere | Set of points equidistant from a center | Mathematics | 0 | 0 | 0 |
| 267 |  | Square | Shape with four equal sides and angles | Mathematics | 0 | 0 | 0 |
| 268 |  | Square root | Number whose square is a given number | Mathematics | 0 | 0 | 0 |
| 269 |  | Standard deviation | Measure of variation in statistics | Mathematics | 0 | 0 | 0 |
| 270 | | Standard error | Statistical property | Mathematics | 0 | 0 | 0 |
| 271 | Statistical hypothesis test | Method of statistical inference | Mathematics | 0 | 0 | 0 | |
| 272 | Statistical population | Complete set of items that share at least one property in common | Mathematics | 0 | 0 | 0 | |
| 273 |  | Statistics | Study of collection and analysis of data | Mathematics | 0 | 0 | 0 |
| 274 |  | Stochastic process | Collection of random variables | Mathematics | 0 | 0 | 0 |
| 275 | Student's t-test | Statistical hypothesis test | Mathematics | 0 | 0 | 0 | |
| 276 |  | Subset | Set whose elements all belong to another set | Mathematics | 0 | 0 | 0 |
| 277 |  | Subtraction | One of the four basic arithmetic operations | Mathematics | 0 | 0 | 0 |
| 278 | Survey methodology | Study of survey methods | Mathematics | 0 | 0 | 0 | |
| 279 |  | Symmetry | Mathematical invariance under transformations | Mathematics | 0 | 0 | 0 |
| 280 |  | Symmetry in mathematics | Mathematics | 0 | 0 | 0 | |
| 281 |  | Taylor series | Mathematical approximation of a function | Mathematics | 0 | 0 | 0 |
| 282 |  | Tensor | Algebraic object with geometric applications | Mathematics | 0 | 0 | 0 |
| 283 |  | Tessellation | Covering by shapes without overlaps or gaps | Mathematics | 0 | 0 | 0 |
| 284 |  | Theorem | In mathematics, a statement that has been proven | Mathematics | 0 | 0 | 0 |
| 285 |  | Theoretical computer science | Subfield of computer science and mathematics | Mathematics | 0 | 0 | 0 |
| 286 | Theory of computation | Academic subfield of computer science | Mathematics | 0 | 0 | 0 | |
| 287 |  | Three-dimensional space | Geometric model of the physical space | Mathematics | 0 | 0 | 0 |
| 288 |  | Topological space | Mathematical space with a notion of closeness | Mathematics | 0 | 0 | 0 |
| 289 |  | Topology | Branch of mathematics | Mathematics | 0 | 0 | 0 |
| 290 |  | Triangle | Shape with three sides | Mathematics | 0 | 0 | 0 |
| 291 |  | Trigonometric functions | Functions of an angle | Mathematics | 0 | 0 | 0 |
| 292 |  | Trigonometry | Area of geometry, about angles and lengths | Mathematics | 0 | 0 | 0 |
| 293 |  | Union (set theory) | Set of elements in any of some sets | Mathematics | 0 | 0 | 0 |
| 294 | Variable (mathematics) | Symbol representing a mathematical object | Mathematics | 0 | 0 | 0 | |
| 295 |  | Variance | Statistical measure of how far values spread from their average | Mathematics | 0 | 0 | 0 |
| 296 | Vector calculus | Calculus of vector-valued functions | Mathematics | 0 | 0 | 0 | |
| 297 |  | Vector space | Algebraic structure in linear algebra | Mathematics | 0 | 0 | 0 |
| 298 |  | Venn diagram | Diagram that shows all possible logical relations between a collection of sets | Mathematics | 0 | 0 | 0 |
| 299 |  | Volume | Quantity of a three-dimensional space | Mathematics | 0 | 0 | 0 |
| 300 |  | Central limit theorem | Fundamental theorem in probability theory and statistics | Mathematics | 0 | 1 | -1 |
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