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  2. List of mathematical constants - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_constants

    A mathematical constant is a key number whose value is fixed by an unambiguous definition, often referred to by a symbol (e.g., an alphabet letter), or by mathematicians' names to facilitate using it across multiple mathematical problems. [1]

  3. 1/2 + 1/4 + 1/8 + 1/16 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/2_%2B_1/4_%2B_1/8_%2B_1/...

    First six summands drawn as portions of a square. The geometric series on the real line. In mathematics, the infinite series ⁠ 1 / 2 ⁠ + ⁠ 1 / 4 ⁠ + ⁠ 1 / 8 ⁠ + ⁠ 1 / 16 ⁠ + ··· is an elementary example of a geometric series that converges absolutely. The sum of the series is 1. In summation notation, this may be expressed as

  4. Decimal - Wikipedia

    en.wikipedia.org/wiki/Decimal

    Similarly, if the final digit on the right of the decimal mark is zero—that is, if b n = 0 —it may be removed; conversely, trailing zeros may be added after the decimal mark without changing the represented number; [note 1] for example, 15 = 15.0 = 15.00 and 5.2 = 5.20 = 5.200.

  5. Quaternary numeral system - Wikipedia

    en.wikipedia.org/wiki/Quaternary_numeral_system

    The four DNA nucleotides in alphabetical order, abbreviated A, C, G, and T, can be taken to represent the quaternary digits in numerical order 0, 1, 2, and 3. With this encoding, the complementary digit pairs 0↔3, and 12 (binary 00↔11 and 01↔10) match the complementation of the base pairs : A↔T and C↔G and can be stored as data in ...

  6. AOL Mail - AOL Help

    help.aol.com/products/aol-webmail

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  7. 1/4 + 1/16 + 1/64 + 1/256 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1/4_%2B_1/16_%2B_1/64_%2B...

    Likewise, the second largest black square has area ⁠ 1 / 16 ⁠, and the third largest black square has area ⁠ 1 / 64 ⁠. The area taken up by all of the black squares together is therefore ⁠ 1 / 4 ⁠ + ⁠ 1 / 16 ⁠ + ⁠ 1 / 64 ⁠ + ⋯ , and this is also the area taken up by the gray squares and the white squares.

  8. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/dying-to-be-free...

    2003 Patrick with his mother at an Easter dinner. Patrick was recuperating from surgery for a knee injury suffered during his sophomore wrestling season. * * * *

  9. GM to take more than $5 billion in charges on China operations

    www.aol.com/gm-more-5-billion-charges-113518512.html

    The company expects a charge of $2.6 billion to $2.9 billion for restructuring costs, and a charge of $2.7 billion for reduced joint-venture value. ... Sales at SAIC-GM slumped 59% in the first 11 ...