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  2. Chegg - Wikipedia

    en.wikipedia.org/wiki/Chegg

    Purdue University prohibits students soliciting answers using Chegg's homework help: "While Chegg can be helpful to access textbooks and more practice problems, using this resource to find assignment answers is considered academic dishonesty because it is a form of copying and plagiarism.".

  3. The Penguin Dictionary of Curious and Interesting Numbers

    en.wikipedia.org/wiki/The_Penguin_Dictionary_of...

    0-14-008029-5 The Penguin Dictionary of Curious and Interesting Numbers is a reference book for recreational mathematics and elementary number theory written by David Wells . The first edition was published in paperback by Penguin Books in 1986 in the UK, and a revised edition appeared in 1997 ( ISBN 0-14-026149-4 ).

  4. List of long mathematical proofs - Wikipedia

    en.wikipedia.org/wiki/List_of_long_mathematical...

    While Deligne's final paper proving these conjectures were "only" about 30 pages long, it depended on background results in algebraic geometry and étale cohomology that Deligne estimated to be about 2000 pages long. 1974 4-color theorem. Appel and Haken's proof of this took 139 pages, and also depended on long computer calculations.

  5. Penguin Random House - Wikipedia

    en.wikipedia.org/wiki/Penguin_Random_House

    Penguin Random House Limited [3] is a British-American multinational conglomerate publishing company formed on July 1, 2013, with the merger of Penguin Books and Random House. [4] [5] Penguin Books was originally founded in 1935 [6] and Random House was founded in 1927. [7] It has more than 300 publishing imprints.

  6. Casio V.P.A.M. calculators - Wikipedia

    en.wikipedia.org/wiki/Casio_V.P.A.M._calculators

    The model featured a 5×6-dot LCD matrix cells on the top line of the screen and a 7-segment LCD on the bottom line of the screen that had been used in Casio fx-4500P programmable calculators. [1] The S-V.P.A.M. system was also used in the other W series models and also the MS series of calculators that followed.

  7. History of mathematics - Wikipedia

    en.wikipedia.org/wiki/History_of_mathematics

    The history of mathematics deals with the origin of discoveries in mathematics and the mathematical methods and notation of the past. Before the modern age and the worldwide spread of knowledge, written examples of new mathematical developments have come to light only in a few locales.

  8. Penguin Group - Wikipedia

    en.wikipedia.org/wiki/Penguin_Group

    Penguin Group is a British trade book publisher and part of Penguin Random House, which is owned by the German media conglomerate Bertelsmann.The new company was created by a merger that was finalised on 1 July 2013, with Bertelsmann initially owning 53% of the joint venture, and Pearson PLC initially owning the remaining 47%. [2]

  9. List of Penguin Classics - Wikipedia

    en.wikipedia.org/wiki/List_of_Penguin_Classics

    In 1996, Penguin Books published as a paperback A Complete Annotated Listing of Penguin Classics and Twentieth-Century Classics (ISBN 0-14-771090-1). This article covers editions in the series: black label (1970s), colour-coded spines (1980s), the most recent editions (2000s), and Little Clothbound Classics Series (2020s).