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  2. Relational algebra - Wikipedia

    en.wikipedia.org/wiki/Relational_algebra

    Relational algebra. In database theory, relational algebra is a theory that uses algebraic structures for modeling data, and defining queries on it with a well founded semantics. The theory was introduced by Edgar F. Codd . The main application of relational algebra is to provide a theoretical foundation for relational databases, particularly ...

  3. Organizational structure of the Central Intelligence Agency

    en.wikipedia.org/wiki/Organizational_structure...

    " Air operations, therefore, were in a separate division either for covert support, paramilitary operations, or both. Cuba Branch had a "Foreign Intelligence Section," foreign intelligence being a term of art for HUMINT. The branch, however, established a separate 'G-2' unit, subordinate to its Paramilitary Section, which planned the actual ...

  4. Administrative divisions of the Philippines - Wikipedia

    en.wikipedia.org/wiki/Administrative_divisions...

    The Philippines is divided into four levels of administrative divisions, with the lower three being defined in the Local Government Code of 1991 as local government units (LGUs). [1] They are, from the highest to the lowest: Regions ( Filipino: rehiyon) are mostly used to organize national services. Of the 17 regions, only one—the Bangsamoro ...

  5. Branch table - Wikipedia

    en.wikipedia.org/wiki/Branch_table

    Branch table. In computer programming, a branch table or jump table is a method of transferring program control ( branching) to another part of a program (or a different program that may have been dynamically loaded) using a table of branch or jump instructions. It is a form of multiway branch. The branch table construction is commonly used ...

  6. Separation of powers - Wikipedia

    en.wikipedia.org/wiki/Separation_of_powers

    Separation of powers is the division of a state 's government into branches, each with separate, independent powers and responsibilities, so that the powers of one branch are not in conflict with others. The typical division into three branches of government, sometimes called the trias politica model, includes a legislature, an executive, and a ...

  7. Boolean algebra - Wikipedia

    en.wikipedia.org/wiki/Boolean_algebra

    Boolean algebra. In mathematics and mathematical logic, Boolean algebra is a branch of algebra. It differs from elementary algebra in two ways. First, the values of the variables are the truth values true and false, usually denoted 1 and 0, whereas in elementary algebra the values of the variables are numbers.

  8. Set theory - Wikipedia

    en.wikipedia.org/wiki/Set_theory

    Mathematics. Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory — as a branch of mathematics — is mostly concerned with those that are relevant to mathematics as a whole.

  9. Branch and bound - Wikipedia

    en.wikipedia.org/wiki/Branch_and_bound

    Branch and bound. Branch and bound ( BB, B&B, or BnB) is a method for solving optimization problems by breaking them down into smaller sub-problems and using a bounding function to eliminate sub-problems that cannot contain the optimal solution. It is an algorithm design paradigm for discrete and combinatorial optimization problems, as well as ...