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  2. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    4 [37] μmol/L: Phosphate (HPO 4 2−) 0.8: 1.5 [38] mmol/L: ... 0.0: 0.75, [14] 2 % of WBC Newborn: 0.64 [144] x10 9 /L Coagulation. Test Lower limit Upper limit Unit

  3. Repeating decimal - Wikipedia

    en.wikipedia.org/wiki/Repeating_decimal

    For example, in duodecimal, ⁠ 1 / 2 ⁠ = 0.6, ⁠ 1 / 3 ⁠ = 0.4, ⁠ 1 / 4 ⁠ = 0.3 and ⁠ 1 / 6 ⁠ = 0.2 all terminate; ⁠ 1 / 5 ⁠ = 0. 2497 repeats with period length 4, in contrast with the equivalent decimal expansion of 0.2; ⁠ 1 / 7 ⁠ = 0. 186A35 has period 6 in duodecimal, just as it does in decimal.

  4. Gamma correction - Wikipedia

    en.wikipedia.org/wiki/Gamma_correction

    For a CRT, the gamma that relates brightness to voltage is usually in the range 2.35 to 2.55; video look-up tables in computers usually adjust the system gamma to the range 1.8 to 2.2, [1] which is in the region that makes a uniform encoding difference give approximately uniform perceptual brightness difference, as illustrated in the diagram at ...

  5. Complex number - Wikipedia

    en.wikipedia.org/wiki/Complex_number

    The n-th power of a complex number can be computed using de Moivre's formula, which is obtained by repeatedly applying the above formula for the product: = ⏟ = ((⁡ + ⁡)) = (⁡ + ⁡). For example, the first few powers of the imaginary unit i are i , i 2 = − 1 , i 3 = − i , i 4 = 1 , i 5 = i , … {\displaystyle i,i^{2}=-1,i^{3}=-i,i ...

  6. Significant figures - Wikipedia

    en.wikipedia.org/wiki/Significant_figures

    For example, if a ruler's smallest mark is 0.1 cm, and 4.5 cm is read, then it is 4.5 (±0.1 cm) or 4.4 cm to 4.6 cm as to the smallest mark interval. However, in practice a measurement can usually be estimated by eye to closer than the interval between the ruler's smallest mark, e.g. in the above case it might be estimated as between 4.51 cm ...

  7. Correlation ratio - Wikipedia

    en.wikipedia.org/wiki/Correlation_ratio

    Geometry: 40, 20, 30 and 42 (4 scores) Statistics: 65, 95, 80, 70, 85 and 73 (6 scores). Then the subject averages are 36, 33 and 78, with an overall average of 52. The sums of squares of the differences from the subject averages are 1952 for Algebra, 308 for Geometry and 600 for Statistics, adding to 2860.

  8. 2-8-8-0 - Wikipedia

    en.wikipedia.org/wiki/2-8-8-0

    The first 2-8-8-0 operated by Baltimore and Ohio was numbered EL-1/a, which was built in 1916 at Baldwin Locomotive Works. [4] The western end of their network had ruling gradients greater than 2%, and the 2-8-8-0 offered exceptional tractive effort , enabling a single locomotive to move the heaviest freight trains.

  9. Knapsack problem - Wikipedia

    en.wikipedia.org/wiki/Knapsack_problem

    The most common problem being solved is the 0-1 knapsack problem, which restricts the number of copies of each kind of item to zero or one. Given a set of items numbered from 1 up to , each with a weight and a value , along with a maximum weight capacity ,