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  2. Reverse stock split - Wikipedia

    en.wikipedia.org/wiki/Reverse_stock_split

    New shares are typically issued in a simple ratio, e.g. 1 new share for 2 old shares, 3 for 4, etc. A reverse split is the opposite of a stock split. Typically, the exchange temporarily adds a "D" to the end of a ticker symbol during a reverse stock split. Sometimes a company may concurrently change its name.

  3. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    2. Denotes the additive inverse and is read as minus, the negative of, or the opposite of; for example, –2. 3. Also used in place of \ for denoting the set-theoretic complement; see \ in § Set theory. × (multiplication sign) 1. In elementary arithmetic, denotes multiplication, and is read as times; for example, 3 × 2. 2.

  4. Additive inverse - Wikipedia

    en.wikipedia.org/wiki/Additive_inverse

    In a vector space, the additive inverse −v (often called the opposite vector of v) has the same magnitude as v and but the opposite direction. [11] In modular arithmetic, the modular additive inverse of x is the number a such that a + x ≡ 0 (mod n) and always exists. For example, the inverse of 3 modulo 11 is 8, as 3 + 8 ≡ 0 (mod 11). [12]

  5. Antiphrasis - Wikipedia

    en.wikipedia.org/wiki/Antiphrasis

    Antiphrasis is the rhetorical device of saying the opposite of what is actually meant in such a way that it is obvious what the true intention is. [1] Some authors treat and use antiphrasis just as irony, euphemism or litotes. [2] When the antiphrasal use is very common, the word can become an auto-antonym, [3] having opposite meanings ...

  6. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    (Temperatures tend to follow the older usage; −5° is generally called "minus five degrees".) [18] Further, a few textbooks in the United States encourage −x to be read as "the opposite of x" or "the additive inverse of x"—to avoid giving the impression that −x is necessarily negative (since x itself may already be negative). [19]

  7. Opposite - Wikipedia

    en.wikipedia.org/wiki/Opposite

    Complementary antonyms are word pairs whose meanings are opposite but whose meanings do not lie on a continuous spectrum (push, pull). Relational antonyms are word pairs where opposite makes sense only in the context of the relationship between the two meanings (teacher, pupil). These more restricted meanings may not apply in all scholarly ...

  8. Unpaired word - Wikipedia

    en.wikipedia.org/wiki/Unpaired_word

    "Absent antonyms" at 2Wheels: The Return; Words with no opposite equivalent, posted by James Briggs on April 2, 2003, at The Phrase Finder; Brev Is the Soul of Wit, Ben Schott, The New York Times, April 19, 2010; Parker, J. H. "The Mystery of The Vanished Positive" in Daily Mail, Annual for Boys and Girls, 1953, Ed.

  9. 15 (number) - Wikipedia

    en.wikipedia.org/wiki/15_(number)

    M = 15 The 15 perfect matchings of K 6 15 as the difference of two positive squares (in orange).. 15 is: The eighth composite number and the sixth semiprime and the first odd and fourth discrete semiprime; [1] its proper divisors are 1, 3, and 5, so the first of the form (3.q), [2] where q is a higher prime.