dual set of inequalities
71Opposite category — In category theory, a branch of mathematics, the opposite category or dual category Cop of a given category C is formed by reversing the morphisms, i.e. interchanging the source and target of each morphism. Doing the reversal twice yields the… …
72Linear algebra — R3 is a vector (linear) space, and lines and planes passing through the origin are vector subspaces in R3. Subspaces are a common object of study in linear algebra. Linear algebra is a branch of mathematics that studies vector spaces, also called …
73Unidentified flying object — UFO redirects here. For other uses, see UFO (disambiguation). Photograph of alleged UFO, New Jersey, July 31, 1952 A term originally coined by …
74Plotinus — Infobox Philosopher region = Western Philosophy era = Ancient philosophy color = #B0C4DE image size = 200px image caption = Plotinus name = Plotinus birth = 204, Lycopolis death = 270, Campania school tradition = Neoplatonism main interests =… …
75Uniform civil code — is a term which has originated from the concept of a Civil Law Code. It envisages administering the same set of secular civil laws to govern different people belonging to different religions and regions. This supersedes the right of citizens to… …
76Rotation matrix — In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix rotates points in the xy Cartesian plane counterclockwise through an angle θ about the origin of the Cartesian… …
77Lesotho — /leuh sooh tooh, soh toh/, n. a monarchy in S Africa: formerly a British protectorate; gained independence 1966; member of the Commonwealth of Nations. 2,007,814; 11,716 sq. mi. (30,344 sq. km). Cap.: Maseru. Formerly, Basutoland. * * * Lesotho… …
78western Africa, history of — Introduction history of the region from the 11th century to the present. A reasonable body of sources for the writing of western African history begins to be available about AD 1000. Three centuries earlier, the Arabs (Arab) had… …
79Paywall — A paywall is an online device which bars internet users from accessing webpage content (most notably news content) without paid subscription. There are both hard and soft paywalls in use. Hard paywalls allow minimal to no access of content… …
80Desegregation busing in the United States — (also known as forced busing or simply busing) is the practice of assigning and transporting students to schools in such a manner as to redress prior racial segregation of schools, or to overcome the effects of residential segregation on local… …
