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  2. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    A simple fraction (also known as a common fraction or vulgar fraction, where vulgar is Latin for "common") is a rational number written as a / b or ⁠ ⁠, where a and b are both integers. [ 9] As with other fractions, the denominator ( b) cannot be zero. Examples include ⁠ 1 2 ⁠, − ⁠ 8 5 ⁠, ⁠ −8 5 ⁠, and ⁠ 8 −5 ⁠.

  3. Division by zero - Wikipedia

    en.wikipedia.org/wiki/Division_by_zero

    Division by zero. The reciprocal function y = ⁠ 1 x⁠. As x approaches zero from the right, y tends to positive infinity. As x approaches zero from the left, y tends to negative infinity. In mathematics, division by zero, division where the divisor (denominator) is zero, is a unique and problematic special case.

  4. Guess 2/3 of the average - Wikipedia

    en.wikipedia.org/wiki/Guess_2/3_of_the_average

    In game theory, " guess ⁠ 2 3 of the average " is a game that explores how a player’s strategic reasoning process takes into account the mental process of others in the game. [1] In this game, players simultaneously select a real number between 0 and 100, inclusive. The winner of the game is the player (s) who select a number closest to ...

  5. Cube (algebra) - Wikipedia

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

    y = x 3 for values of 1 ≤ x ≤ 25.. In arithmetic and algebra, the cube of a number n is its third power, that is, the result of multiplying three instances of n together. The cube of a number or any other mathematical expression is denoted by a superscript 3, for example 2 3 = 8 or (x + 1) 3.

  6. List of Christian denominations by number of members

    en.wikipedia.org/wiki/List_of_Christian...

    Anglican Episcopal Church of Brazil – 0.1 million [ 59] Anglican Church of Mexico – 0.1 million. Church of the Province of South East Asia – 0.1 million. Anglican Church of Korea – 0.1 million [ 60] Spanish Reformed Episcopal Church – 0.005 million. Lusitanian Catholic Apostolic Evangelical Church – 0.005 million.

  7. f-number - Wikipedia

    en.wikipedia.org/wiki/F-number

    f-number. Diagram of decreasing apertures, that is, increasing f-numbers, in one-stop increments; each aperture has half the light-gathering area of the previous one. An f-number is a measure of the light-gathering ability of an optical system such as a camera lens. It is calculated by dividing the system's focal length by the diameter of the ...

  8. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    The nautical mile (nmi) was originally defined as the arc length of a minute of latitude on a spherical Earth, so the actual Earth circumference is very near 21 600 nmi. A minute of arc is ⁠π 10 800⁠ of a radian . A second of arc, arcsecond (arcsec), or arc second, denoted by the symbol ″, [ 2] is ⁠ 1 60 ⁠ of an arcminute, ⁠ 1 3600 ...

  9. World Health Organization - Wikipedia

    en.wikipedia.org/wiki/World_Health_Organization

    The WHO is funded primarily by contributions from member states (both assessed and voluntary), followed by private donors. Its total approved budget for 2020–2021 is over $7.2 billion, [2] [11] while the approved budget for 2022–2023 is over $6.2 billion. The budget is $6.83 billion for 2024–2025.