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  2. Timeline of mathematics - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_mathematics

    This is a timeline of pure and applied mathematics history.It is divided here into three stages, corresponding to stages in the development of mathematical notation: a "rhetorical" stage in which calculations are described purely by words, a "syncopated" stage in which quantities and common algebraic operations are beginning to be represented by symbolic abbreviations, and finally a "symbolic ...

  3. List of mathematical series - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_series

    An infinite series of any rational function of can be reduced to a finite series of polygamma functions, by use of partial fraction decomposition, [8] as explained here. This fact can also be applied to finite series of rational functions, allowing the result to be computed in constant time even when the series contains a large number of terms.

  4. Time series - Wikipedia

    en.wikipedia.org/wiki/Time_series

    Time series: random data plus trend, with best-fit line and different applied filters. In mathematics, a time series is a series of data points indexed (or listed or graphed) in time order. Most commonly, a time series is a sequence taken at successive equally spaced points in time.

  5. Chudnovsky algorithm - Wikipedia

    en.wikipedia.org/wiki/Chudnovsky_algorithm

    ) + / A detailed proof of this formula can be found here: [14] This identity is similar to some of Ramanujan 's formulas involving π , [ 13 ] and is an example of a Ramanujan–Sato series . The time complexity of the algorithm is O ( n ( log ⁡ n ) 3 ) {\displaystyle O\left(n(\log n)^{3}\right)} .

  6. Timeline of algebra - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_algebra

    He start[s] a school of algebra which flourished for several hundreds of years”. He also discovers the binomial theorem for integer exponents, which “was a major factor in the development of numerical analysis based on the decimal system.” c. 1000: Abū Sahl al-Qūhī (Kuhi) solves equations higher than the second degree. c. 1050

  7. Portal:Current events/November 2019 - Wikipedia

    en.wikipedia.org/.../November_2019

    Law and crime Crime in France A gunman shoots and injures six people at a bar in Marseille, France. The gunman is still at large. (Euronews) 2019 Samoa assassination plot A man who had pled guilty to conspiracy to assassinate the Prime Minister of Samoa, and was due to be sentenced today, has changed his plea from guilty to not-guilty. (Radio New Zealand) Irish mixed-martial artist Conor ...

  8. Time series database - Wikipedia

    en.wikipedia.org/wiki/Time_series_database

    A time series database is a software system that is optimized for storing and serving time series through associated pairs of time(s) and value(s). [1] In some fields, time series may be called profiles, curves, traces or trends. [ 2 ]

  9. Zeller's congruence - Wikipedia

    en.wikipedia.org/wiki/Zeller's_congruence

    K the year of the century (()). (The adjYear (adjusted year) is explained in the Note below.) J is the zero-based century (actually ⌊ ( a d j Y e a r ) / 100 ⌋ {\displaystyle \lfloor (adjYear)/100\rfloor } ) For example, the zero-based centuries for 1995 and 2000 are 19 and 20 respectively (not to be confused with the common ordinal century ...