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  2. Boolean satisfiability problem - Wikipedia

    en.wikipedia.org/wiki/Boolean_satisfiability_problem

    A variant of the 3-satisfiability problem is the one-in-three 3-SAT (also known variously as 1-in-3-SAT and exactly-1 3-SAT). Given a conjunctive normal form with three literals per clause, the problem is to determine whether there exists a truth assignment to the variables so that each clause has exactly one TRUE literal (and thus exactly two ...

  3. SAT solver - Wikipedia

    en.wikipedia.org/wiki/SAT_solver

    In computer science and formal methods, a SAT solver is a computer program which aims to solve the Boolean satisfiability problem.On input a formula over Boolean variables, such as "(x or y) and (x or not y)", a SAT solver outputs whether the formula is satisfiable, meaning that there are possible values of x and y which make the formula true, or unsatisfiable, meaning that there are no such ...

  4. NP-completeness - Wikipedia

    en.wikipedia.org/wiki/NP-completeness

    The Boolean satisfiability problem (SAT) asks to determine if a propositional formula (example depicted) can be made true by an appropriate assignment ("solution") of truth values to its variables. While it is easy to verify whether a given assignment renders the formula true , [ 1 ] no essentially faster method to find a satisfying assignment ...

  5. SAT - Wikipedia

    en.wikipedia.org/wiki/SAT

    SAT test-takers are given two hours and 14 minutes to complete the test (plus a 10-minute break between the Reading and Writing section and the Math section), [29] and as of 2024 the test costs US$60.00, plus additional fees for late test registration, registration by phone, registration changes, rapid delivery of results, delivery of results ...

  6. Not-all-equal 3-satisfiability - Wikipedia

    en.wikipedia.org/wiki/Not-all-equal_3-satisfiability

    The NP-completeness of NAE3SAT can be proven by a reduction from 3-satisfiability (3SAT). [2] First the nonsymmetric 3SAT is reduced to the symmetric NAE4SAT by adding a common dummy literal to every clause, then NAE4SAT is reduced to NAE3SAT by splitting clauses as in the reduction of general -satisfiability to 3SAT.

  7. SAT Subject Tests - Wikipedia

    en.wikipedia.org/wiki/SAT_Subject_Tests

    SAT Subject Test in French: French: 634 121: 6,800 SAT Subject Test in French with Listening: French: 664 113: 1,533 SAT Subject Test in German: German: 636 124: 621 SAT Subject Test in German with Listening: German: 629 121: 479: SAT Subject Test in Modern Hebrew: Modern Hebrew: 614 145: 344 SAT Subject Test in Italian: Italian: 677 114: 488 ...

  8. Maximum satisfiability problem - Wikipedia

    en.wikipedia.org/wiki/Maximum_satisfiability_problem

    The soft satisfiability problem (soft-SAT), given a set of SAT problems, asks for the maximum number of those problems which can be satisfied by any assignment. [16] The minimum satisfiability problem. The MAX-SAT problem can be extended to the case where the variables of the constraint satisfaction problem belong to the set

  9. History of the SAT - Wikipedia

    en.wikipedia.org/wiki/History_of_the_SAT

    [35] [36] In 1993, the College Board changed the name of the test to SAT I: Reasoning Test and changed the name of the Achievement Tests to SAT II: Subject Tests. [37] Together, all of these tests were to be collectively known as the Scholastic Assessment Tests. The president of the College Board at the time said that the name change was meant ...