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  2. Modular arithmetic - Wikipedia

    en.wikipedia.org/wiki/Modular_arithmetic

    Adding 4 hours to 9 o'clock gives 1 o'clock, since 13 is congruent to 1 modulo 12. In mathematics, modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus. The modern approach to modular arithmetic was developed by Carl Friedrich Gauss in his book Disquisitiones ...

  3. Artificial intelligence - Wikipedia

    en.wikipedia.org/wiki/Artificial_intelligence

    Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems.It is a field of research in computer science that develops and studies methods and software that enable machines to perceive their environment and use learning and intelligence to take actions that maximize their chances of achieving defined goals. [1]

  4. Modular multiplicative inverse - Wikipedia

    en.wikipedia.org/wiki/Modular_multiplicative_inverse

    Modular multiplicative inverse. In mathematics, particularly in the area of arithmetic, a modular multiplicative inverse of an integer a is an integer x such that the product ax is congruent to 1 with respect to the modulus m. [1] In the standard notation of modular arithmetic this congruence is written as.

  5. Illinois governor calls for resignation of sheriff whose ...

    www.aol.com/news/illinois-governor-calls...

    Illinois Gov. J.B. Pritzker called Wednesday for the resignation of the sheriff whose deputy fatally wounded Sonya Massey in her home last month after the Black woman called 911 for help. Pritzker ...

  6. 2,600+ US flights canceled: United, American Airlines resume ...

    www.aol.com/over-500-us-flights-canceled...

    There were over 2,600 flights canceled and nearly 9,200 delays as of 5 p.m. ET, according to flight-tracking website FlightAware. Most airlines were able to resume operations as the morning ...

  7. List of PSPACE-complete problems - Wikipedia

    en.wikipedia.org/wiki/List_of_PSPACE-complete...

    Generalized versions of: Amazons [ 1] Atomix [ 2] Checkers if a draw is forced after a polynomial number of non-jump moves [ 3] Dyson Telescope Game [ 4] Cross Purposes [ 5] Geography. Two-player game version of Instant Insanity. Ko -free Go [ 6]

  8. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    Linux (/ ˈ l ɪ n ʊ k s /, LIN-uuks) [11] is a generic name for a family of open-source Unix-like operating systems based on the Linux kernel, [12] an operating system kernel first released on September 17, 1991, by Linus Torvalds.

  9. NP-hardness - Wikipedia

    en.wikipedia.org/wiki/NP-hardness

    In computational complexity theory, a computational problem H is called NP-hard if, for every problem L which can be solved in non-deterministic polynomial-time, there is a polynomial-time reduction from L to H. That is, assuming a solution for H takes 1 unit time, H ' s solution can be used to solve L in polynomial time.