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  2. William Delbert Gann - Wikipedia

    en.wikipedia.org/wiki/William_Delbert_Gann

    William Delbert Gann (June 6, 1878 – June 18, 1955) or WD Gann, was a finance trader who developed the technical analysis methods like the Gann angles [1] [2] and the Master Charts, [3] [4] where the latter is a collective name for his various tools like the Spiral Chart (also called the Square of Nine), [5] [6] [7] the Hexagon Chart, [8] and the Circle of 360.

  3. Gann angles - Wikipedia

    en.wikipedia.org/wiki/Gann_angles

    Calculating a Gann angle is equivalent to finding the derivative of a particular line on a chart in a simple way. [1] A Gann angle is a straight line on a price chart, giving a fixed relation between time and price. For Gann the most important angle was the line which represented one unit of price for one unit of time, called the 1x1 or the 45 ...

  4. Pivotal quantity - Wikipedia

    en.wikipedia.org/wiki/Pivotal_quantity

    In statistics, a pivotal quantity or pivot is a function of observations and unobservable parameters such that the function's probability distribution does not depend on the unknown parameters (including nuisance parameters). [1] A pivot need not be a statistic — the function and its value can depend on the parameters of the model, but its ...

  5. Power Pivot - Wikipedia

    en.wikipedia.org/wiki/Power_Pivot

    As part of the July 2013 announcement of the new Microsoft Power BI suite of self-service tools, Microsoft renamed PowerPivot as "Power Pivot" (note the spacing in the name) in order to match the naming convention of other tools in the suite. [6] Power Pivot 2016 was released with Excel 2016 and was additionally included in the Pro version of ...

  6. Mental calculation - Wikipedia

    en.wikipedia.org/wiki/Mental_calculation

    This method requires memorization of the squares of the one-digit numbers 1 to 9. The square of mn, mn being a two-digit integer, can be calculated as 10 × m(mn + n) + n 2. Meaning the square of mn can be found by adding n to mn, multiplied by m, adding 0 to the end and finally adding the square of n. For example, 23 2: 23 2 = 10 × 2(23 + 3 ...

  7. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  8. Microsoft Live Labs Pivot - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Live_Labs_Pivot

    Pivot is a software application from Microsoft Live Labs that allows users to interact with and search large amounts of data. It is based on Microsoft's Seadragon . [ 1 ] [ 2 ] It has been described as allowing users to view the web as a web rather than as isolated pages.

  9. The Tunnel Thru the Air; Or, Looking Back from 1940 - Wikipedia

    en.wikipedia.org/wiki/The_Tunnel_Thru_the_Air;...

    The Tunnel Thru the Air, Or, Looking Back from 1940 is a science fiction novel written by market forecaster William Delbert Gann in 1927. [1] In the Foreword, Gann hinted that this book is more than just a novel because it "contains a valuable secret, clothed in veiled language.