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  2. Less-than sign - Wikipedia

    en.wikipedia.org/wiki/Less-than_sign

    The less-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the left, <, has been found in documents dated as far back as the 1560s.

  3. Bootstrapping (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Bootstrapping_(disambiguation)

    Bootstrapping, bootstrap, or bootstraps may also refer to: Bootstrap (front-end framework), a free collection of tools for creating websites and web applications; Bootstrap curriculum, a curriculum which uses computer programming to teach algebra to students age 12–16; Bootstrap funding in entrepreneurship and startups

  4. Square (algebra) - Wikipedia

    en.wikipedia.org/wiki/Square_(algebra)

    55, or 5 2 (5 squared), can be shown graphically using a square. Each block represents one unit, 1⋅1, and the entire square represents 55, or the area of the square. In mathematics, a square is the result of multiplying a number by itself. The verb "to square" is used to denote this operation.

  5. Brain Tumors in Adults - WebMD

    www.webmd.com/cancer/brain-cancer/brain-tumors...

    These form in the meninges, the thin layer of tissue that covers the brain and spinal cord. They aren’t cancer, but they can cause problems by pressing on your brain. Schwannomas.

  6. PlayStation 5 - Wikipedia

    en.wikipedia.org/wiki/PlayStation_5

    The PlayStation 5 (PS5) is a home video game console developed by Sony Interactive Entertainment.It was announced as the successor to the PlayStation 4 in April 2019, was launched on November 12, 2020, in Australia, Japan, New Zealand, North America, and South Korea, and was released worldwide a week later.

  7. Section sign - Wikipedia

    en.wikipedia.org/wiki/Section_sign

    The section sign is often used when referring to a specific section of a legal code. For example, in Bluebook style, "Title 16 of the United States Code Section 580p" becomes "16 U.S.C. § 580p". [4] The section sign is frequently used along with the pilcrow (or paragraph sign), ¶, to reference a specific paragraph within a section of a document.

  8. 5 - Wikipedia

    en.wikipedia.org/wiki/5

    5 is the first safe prime [4], and the first good prime. [5] 11 forms the first pair of sexy primes with 5. [6] 5 is the second Fermat prime, of a total of five known Fermat primes. [7] The internal geometry of the pentagon and pentagram (represented by its Schläfli symbol {5/2}) appears prominently in Penrose tilings.

  9. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    A plus sign prefixed to a telephone number is used to indicate the form used for International Direct Dialing. [23] Its precise usage varies by technology and national standards. In the International Phonetic Alphabet, subscripted plus and minus signs are used as diacritics to indicate advanced or retracted articulations of speech sounds.