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  2. P versus NP problem - Wikipedia

    en.wikipedia.org/wiki/P_versus_NP_problem

    In this theory, the class P consists of all decision problems (defined below) solvable on a deterministic sequential machine in a duration polynomial in the size of the input; the class NP consists of all decision problems whose positive solutions are verifiable in polynomial time given the right information, or equivalently, whose solution can ...

  3. History of infant schools in Great Britain - Wikipedia

    en.wikipedia.org/wiki/History_of_infant_schools...

    Early childhood education was a new concept at the time and seen as a potential solution to social problems related to industrialisation. Numerous writers published works on the subject and developed a theory of infant teaching. This included moral education, physical exercise and an authoritative but friendly teacher.

  4. IB Group 4 subjects - Wikipedia

    en.wikipedia.org/wiki/IB_Group_4_subjects

    There are also two SL only courses: a transdisciplinary course, Environmental Systems and Societies, that satisfies Diploma requirements for Groups 3 and 4, [2] and Sports, Exercise and Health Science (previously, for last examinations in 2013, a pilot subject [3]). Astronomy also exists as a school-based syllabus.

  5. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.

  6. HMS Prince of Wales (R09) - Wikipedia

    en.wikipedia.org/wiki/HMS_Prince_of_Wales_(R09)

    HMS Prince of Wales (R09) is the second Queen Elizabeth-class aircraft carrier and the Fleet Flagship of the Royal Navy. Prince of Wales is not fitted with catapults and arrestor wires, and is instead designed to operate STOVL aircraft; the ship is currently planned to carry up to 48 F-35B Lightning II stealth multirole fighters and Merlin helicopters for airborne early warning and anti ...

  7. Health insurance coverage in the United States - Wikipedia

    en.wikipedia.org/wiki/Health_insurance_coverage...

    Health insurance coverage is provided by several public and private sources in the United States. Analyzing these statistics is challenging due to multiple survey methods [13] and persons with multiple sources of insurance, such as those with coverage under both an employer plan and Medicaid.

  8. Gordian Knot - Wikipedia

    en.wikipedia.org/wiki/Gordian_Knot

    Literary sources of the story include Arrian (Anabasis Alexandri 2.3), Quintus Curtius (3.1.14), Justin's epitome of Pompeius Trogus (11.7.3), and Aelian's De Natura Animalium 13.1. [ 6 ] Alexander the Great later went on to conquer Asia as far as the Indus and the Oxus , thus fulfilling the prophecy.

  9. Linear discriminant analysis - Wikipedia

    en.wikipedia.org/wiki/Linear_discriminant_analysis

    For instance, the classes may be partitioned, and a standard Fisher discriminant or LDA used to classify each partition. A common example of this is "one against the rest" where the points from one class are put in one group, and everything else in the other, and then LDA applied. This will result in C classifiers, whose results are combined.