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  2. Singly and doubly even - Wikipedia

    en.wikipedia.org/wiki/Singly_and_doubly_even

    The 2-order provides a unified description of various classes of integers defined by evenness: Odd numbers are those with ν 2 (n) = 0, i.e., integers of the form 2m + 1. Even numbers are those with ν 2 (n) > 0, i.e., integers of the form 2m. In particular: Singly even numbers are those with ν 2 (n) = 1, i.e., integers of the form 4m + 2.

  3. Parity (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Parity_(mathematics)

    Any two consecutive integers have opposite parity. A number (i.e., integer) expressed in the decimal numeral system is even or odd according to whether its last digit is even or odd. That is, if the last digit is 1, 3, 5, 7, or 9, then it is odd; otherwise it is even—as the last digit of any even number is 0, 2, 4, 6, or 8.

  4. Odd–even rationing - Wikipedia

    en.wikipedia.org/wiki/Oddeven_rationing

    Mathematically, zero is an even number; half of the numbers in a given range end in 0, 2, 4, 6, 8 and the other half in 1, 3, 5, 7, 9, so it makes sense to include 0 with the other even digits for rationing. However, the general public is not always aware of the mathematical principle and think that zero is odd, or both even and odd, or neither.

  5. Collatz conjecture - Wikipedia

    en.wikipedia.org/wiki/Collatz_conjecture

    The number is taken to be 'odd' or 'even' according to whether its numerator is odd or even. Then the formula for the map is exactly the same as when the domain is the integers: an 'even' such rational is divided by 2; an 'odd' such rational is multiplied by 3 and then 1 is added.

  6. Chō-han - Wikipedia

    en.wikipedia.org/wiki/Chō-han

    More often, the players will bet against each other (this requires an equal number of players betting on odd and even) and the house will collect a set percentage of winning bets. Of the 36 possible outcomes, there are six distinct doubles that result in an even (丁) outcome (e.g., (1,1), (2,2), etc.) and 30 pairings of different numbers: 18 ...

  7. Thanks to conference realignment, the Alamo Bowl will be a ...

    www.aol.com/sports/thanks-conference-realignment...

    The four tied for first place in the Big 12 at 7-2, and ISU and ASU are playing each other on Saturday for the Big 12 title. ... Even if it’ll be bizarre to watch a conference game during the ...

  8. Just how fast is Miami sinking into the Atlantic Ocean? - AOL

    www.aol.com/just-fast-miami-sinking-atlantic...

    MIAMI – A new study from the University of Miami shows dozens of luxury, beachfront condos and hotels, all along the southeast coast of Florida, are sinking into the ground at unexpected rates ...

  9. Parity of a permutation - Wikipedia

    en.wikipedia.org/wiki/Parity_of_a_permutation

    If n > 1, then there are just as many even permutations in S n as there are odd ones; [3] consequently, A n contains n!/2 permutations. (The reason is that if σ is even then (1 2)σ is odd, and if σ is odd then (1 2)σ is even, and these two maps are inverse to each other.) [3] A cycle is even if and only if its length is odd. This follows ...