number representation
51Redundant binary representation — A redundant binary representation (RBR) is a numeral system that uses more bits than needed to represent a single binary digit so that most numbers have several representations. RBR is unlike usual binary numeral systems, including two s… …
52Practical number — In mathematics, and in particular number theory, a practical number or panarithmic number is a positive integer n such that all smaller positive integers can be represented as sums of distinct divisors of n . For example, 12 is a practical number …
53Mixed member proportional representation — Mixed member proportional representation, also termed mixed member proportional voting and commonly abbreviated to MMP, is an additional member voting system used to elect representatives to numerous legislatures around the world. MMP is similar… …
54Spin representation — In mathematics, the spin representations are particular projective representations of the orthogonal or special orthogonal groups in arbitrary dimension and signature (i.e., including indefinite orthogonal groups). More precisely, they are… …
55United Nations High Commissioner for Refugees Representation in Cyprus — Established on December 14 1950, the Office of the UN High Commissioner for Refugees (UNHCR) is a United Nations agency mandated to protect and support refugees at the request of a government or the UN itself and assists in their voluntary… …
56Algebraic number field — In mathematics, an algebraic number field (or simply number field) F is a finite (and hence algebraic) field extension of the field of rational numbers Q. Thus F is a field that contains Q and has finite dimension when considered as a vector… …
57−1 (number) — −1 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers 0 10 20 30 …
58Partition (number theory) — Young diagrams associated to the partitions of the positive integers 1 through 8. They are so arranged that images under the reflection about the main diagonal of the square are conjugate partitions. In number theory and combinatorics, a… …
59Board representation (chess) — In computer chess, software developers must choose a data structure to represent chess positions. Several data structures exist, collectively known as board representations. [ [http://www.cis.uab.edu/hyatt/boardrep.html Hyatt full article] ]… …
60Intersection number (graph theory) — In the mathematical field of graph theory, the intersection number of a graph is the smallest number of elements in a representation of G as an intersection graph of finite sets. Equivalently, it is the smallest number of cliques needed to cover… …
