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  2. Significant figures - Wikipedia

    en.wikipedia.org/wiki/Significant_figures

    0.00034 has 2 significant figures (3 and 4) if the resolution is 0.00001. Zeros to the right of the last non-zero digit (trailing zeros) in a number with the decimal point are significant if they are within the measurement or reporting resolution. 1.200 has four significant figures (1, 2, 0, and 0) if they are allowed by the measurement resolution.

  3. Rounding - Wikipedia

    en.wikipedia.org/wiki/Rounding

    5 / 3 1.6667: 4 decimal places: Approximating a fractional decimal number by one with fewer digits 2.1784: 2.18 2 decimal places Approximating a decimal integer by an integer with more trailing zeros 23217: 23200: 3 significant figures Approximating a large decimal integer using scientific notation: 300999999: 3.01 × 10 8: 3 significant figures

  4. Engineering notation - Wikipedia

    en.wikipedia.org/wiki/Engineering_notation

    Engineering notation or engineering form (also technical notation) is a version of scientific notation in which the exponent of ten is always selected to be divisible by three to match the common metric prefixes, i.e. scientific notation that aligns with powers of a thousand, for example, 531×10 3 instead of 5.31×10 5 (but on calculator displays written without the ×10 to save space).

  5. List of countries by GDP (nominal) - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_GDP...

    On the whole, PPP per capita figures are less spread than nominal GDP per capita figures. [5] The rankings of national economies over time have changed considerably; the economy of the United States surpassed the British Empire's output around 1916, [6] which in turn had surpassed the economy of the Qing dynasty in aggregate output decades earlier.

  6. Number - Wikipedia

    en.wikipedia.org/wiki/Number

    For instance, the number 3 can be represented as the class of all sets that have exactly three elements. Alternatively, in Peano Arithmetic, the number 3 is represented as sss0, where s is the "successor" function (i.e., 3 is the third successor of 0). Many different representations are possible; all that is needed to formally represent 3 is to ...

  7. Statistical significance - Wikipedia

    en.wikipedia.org/wiki/Statistical_significance

    Researchers focusing solely on whether their results are statistically significant might report findings that are not substantive [46] and not replicable. [47] [48] There is also a difference between statistical significance and practical significance. A study that is found to be statistically significant may not necessarily be practically ...

  8. Polymath - Wikipedia

    en.wikipedia.org/wiki/Polymath

    In his 2018 book The Polymath, British author Waqas Ahmed defines polymaths as those who have made significant contributions to at least three different fields. [16] Rather than seeing polymaths as exceptionally gifted, he argues that every human being has the potential to become one: that people naturally have multiple interests and talents ...

  9. List of genres - Wikipedia

    en.wikipedia.org/wiki/List_of_genres

    This is a list of genres of literature and entertainment (film, television, music, and video games), excluding genres in the visual arts.. Genre is the term for any category of creative work, which includes literature and other forms of art or entertainment (e.g. music)—whether written or spoken, audio or visual—based on some set of stylistic criteria.