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  2. Glossary of mathematical symbols - Wikipedia

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

    2. Denotes that a number is positive and is read as plus. Redundant, but sometimes used for emphasizing that a number is positive, specially when other numbers in the context are or may be negative; for example, +2. 3. Sometimes used instead of for a disjoint union of sets. − 1.

  3. Wikipedia : Unusual articles/Mathematics and numbers

    en.wikipedia.org/.../Mathematics_and_numbers

    An infinite number of monkeys typing on an infinite number of typewriters will (almost surely) produce all possible written texts. Interesting number paradox Either all natural numbers are interesting or else none of them are.

  4. List of bad luck signs - Wikipedia

    en.wikipedia.org/wiki/List_of_bad_luck_signs

    The number 17. Fear of the number 17 is known as heptadecaphobia and is prominent in Italian culture. [6] The number 39. Fear of the number 39 is known as the curse of 39, especially in Afghan culture. [7] The number 43. In Japanese culture, maternity wards numbered 43 are considered taboo, as the word for the number means "stillbirth". [8] The ...

  5. In a laborious industry that necessitates odd hours, largely eschews paid parental leave and is still male-dominated at its upper ranks, juggling service and motherhood can wear women out — or ...

  6. When Nature Gets Weird: 50 Odd Facts That May Leave You ... - AOL

    www.aol.com/lifestyle/52-facts-nature-animals...

    Scientists have determined that the number of stars in the Milky Way ranges from 100 billion to upwards of 400 billion, but there is an estimated amount of 3 trillion trees on Earth. That’s a ...

  7. Weird number - Wikipedia

    en.wikipedia.org/wiki/Weird_number

    A property of weird numbers is that if n is weird, and p is a prime greater than the sum of divisors σ(n), then pn is also weird. [4] This leads to the definition of primitive weird numbers: weird numbers that are not a multiple of other weird numbers (sequence A002975 in the OEIS). Among the 1765 weird numbers less than one million, there are ...

  8. Odd Hours - Wikipedia

    en.wikipedia.org/wiki/Odd_Hours

    Odd Hours is the fourth novel in the Odd Thomas series by Dean Koontz. It was released on May 20, 2008. ... Once he finds her they decide they need to leave ...

  9. Glossary of American terms not widely used in the United ...

    en.wikipedia.org/wiki/Glossary_of_American_terms...

    left field * a notional source of unexpected or illogical questions, ideas, etc. ("that proposal came out of left field") [585] Defined by the Merriam-Webster online American dictionary as having American baseball-related origins [586] (the) Lower 48 used mainly by Alaskans, this is a colloquialism for the 48 Contiguous United States.