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  2. Logistic map - Wikipedia

    en.wikipedia.org/wiki/Logistic_map

    For r between -2 and -1 the logistic sequence also features chaotic behavior. [6] With r between -1 and 1 - √ 6 and for x 0 between 1/ r and 1-1/ r, the population will approach permanent oscillations between two values, as with the case of r between 3 and 1 + √ 6, and given by the same formula. [6]

  3. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    [163] [164] [165] In two dimensions, the critical Sobolev inequality is ‖ ‖ ‖ ‖ for f a smooth function with compact support in R 2, is the gradient of f, and ‖ ‖ and ‖ ‖ refer respectively to the L 2 and L 1-norm. The Sobolev inequality is equivalent to the isoperimetric inequality (in any dimension), with the same best constants.

  4. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    Arithmetic is the fundamental branch of mathematics that studies numbers and their operations. In particular, it deals with numerical calculations using the arithmetic operations of addition, subtraction, multiplication, and division. [1]

  5. Number - Wikipedia

    en.wikipedia.org/wiki/Number

    For example, 6.849999999999... = 6.85 and 6.850000000000... = 6.85. Finally, if all of the digits in a numeral are 0, the number is 0, and if all of the digits in a numeral are an unending string of 9s, you can drop the nines to the right of the decimal place, and add one to the string of 9s to the left of the decimal place.

  6. Leap second - Wikipedia

    en.wikipedia.org/wiki/Leap_second

    Screenshot of the UTC clock from time.gov during the leap second on 31 December 2016.. A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC), to accommodate the difference between precise time (International Atomic Time (TAI), as measured by atomic clocks) and imprecise observed solar time (), which varies due to irregularities and long-term ...

  7. List of exoplanets discovered in 2017 - Wikipedia

    en.wikipedia.org/wiki/List_of_exoplanets...

    2.9 +1.6 −0.6: microlensing 11400 ± 1300 0.58 ± 0.11 4000 +450 −350 [67] MOA-2012-BLG-006Lb: 8.40 10.2 microlensing 17000 0.49 [68] MOA-2012-BLG-505Lb: 0.02108 0.900 microlensing 23500 0.10 [69] MOA-2016-BLG-227Lb: 2.8 1.67 microlensing 21000 0.29 [70] MXB 1658-298 b: 23.7 760 1.613 timing 1.98 Circumbinary planet [71] NGTS-1b: 0.812 1.33 ...

  8. List of exoplanets discovered in 2024 - Wikipedia

    en.wikipedia.org/wiki/List_of_exoplanets...

    2.78 +0.22 −0.15: 123.1 +6.3 −6.7: radial vel. TOI-2580 b 0.63 ± 0.08 1.55 ± 0.05 3.397750 ± 0.000002 0.048 ± 0.003 2410 ± 60 transit 1236 ± 16 1.33 ± 0.08 6120 ± 30 [130] TOI-2714 b 0.717 +0.104 −0.101: 1.224 +0.0625 −0.0598: 2.499 0.036 ± 0.002 1603 ± 65 transit 1930 ± 16 1.07 ± 0.06 5665 ± 115 [166] TOI-2768 b 0.2688 ± ...

  9. Protein - Wikipedia

    en.wikipedia.org/wiki/Protein

    [4] [5] Mulder carried out elemental analysis of common proteins and found that nearly all proteins had the same empirical formula, C 400 H 620 N 100 O 120 P 1 S 1. [6] He came to the erroneous conclusion that they might be composed of a single type of (very large) molecule.