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  2. List of mathematical constants - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_constants

    He also noted that while the Champernowne constant continued fraction contains sporadic large terms, the continued fraction of the Copeland–Erdős Constant do not exhibit this property. [Mw 85] Base 10 Champernowne constant: 0.12345 67891

  3. National Origins Formula - Wikipedia

    en.wikipedia.org/wiki/National_Origins_Formula

    Or the formula could be solved to compute the quota by converting the fraction for the national origin into decimal form, then multiplying to take the equivalent percentage share of 150,000: ⁠ 39,216,333 / 89,506,558 ⁠ = 0.4381392143 × 150,000 = 65720.882 ≈ 65,721.

  4. Aspect ratio (image) - Wikipedia

    en.wikipedia.org/wiki/Aspect_ratio_(image)

    In contrast, digital projection technology typically supports vertically oriented images only at a fraction of the resolution of landscape-oriented images. For example, projecting a digital still image having a 3:2 aspect ratio on a 16:9 projector employs 84.3% of available resolution in horizontal orientation, but only 37.5% in vertical ...

  5. Orders of magnitude (numbers) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(numbers)

    1/52! chance of a specific shuffle Mathematics: The chances of shuffling a standard 52-card deck in any specific order is around 1.24 × 10 −68 (or exactly 1 ⁄ 52!) [4] Computing: The number 1.4 × 10 −45 is approximately equal to the smallest positive non-zero value that can be represented by a single-precision IEEE floating-point value.

  6. Poverty gap index - Wikipedia

    en.wikipedia.org/wiki/Poverty_Gap_Index

    By definition, the poverty gap index is a percentage between 0 and 100%. Sometimes it is reported as a fraction, between 0 and 1. A theoretical value of zero implies that no one in the population is below the poverty line. A theoretical value of 100% implies that everyone in the population has zero income.

  7. Kegelite - Wikipedia

    en.wikipedia.org/wiki/Kegelite

    Kegelite is a complex silicate mineral with formula Pb 8 Al 4 Si 8 O 20 (SO 4) 2 (CO 3) 4 (OH) 8.. It was first described in 1975 for an occurrence in the Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia and named for Friedrich Wilhelm Kegel (?-1948), Director of mining operations at Tsumeb.

  8. List of countries by current account balance as percentage of ...

    en.wikipedia.org/wiki/List_of_countries_by...

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  9. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3.A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell.