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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. List of Martin Gardner Mathematical Games columns - Wikipedia

   en.wikipedia.org/wiki/List_of_Martin_Gardner...

   The amazing feats of professional mental calculators, and some tricks of the trade 1967 May: Cube-root extraction and the calendar trick, or how to cheat in mathematics 1967 Jun: The polyhex and the polyabolo, polygonal jigsaw puzzle pieces 1967 Jul: Of sprouts and Brussels sprouts, games with a topological flavor 1967 Aug

5. Inverse Symbolic Calculator - Wikipedia

   en.wikipedia.org/wiki/Inverse_Symbolic_Calculator

   A user will input a number and the Calculator will use an algorithm to search for and calculate closed-form expressions or suitable functions that have roots near this number. Hence, the calculator is of great importance for those working in numerical areas of experimental mathematics. The ISC contains 54 million mathematical constants.

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. Genius (mathematics software) - Wikipedia

   en.wikipedia.org/wiki/Genius_(mathematics_software)

   Genius (also known as the Genius Math Tool) is a free open-source numerical computing environment and programming language, [2] similar in some aspects to MATLAB, GNU Octave, Mathematica and Maple. Genius is aimed at mathematical experimentation rather than computationally intensive tasks. It is also very useful as just a calculator.

8. Talk:Gann angles - Wikipedia

   en.wikipedia.org/wiki/Talk:Gann_angles

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9. Pseudomathematics - Wikipedia

   en.wikipedia.org/wiki/Pseudomathematics

   Pseudomathematics, or mathematical crankery, is a mathematics-like activity that does not adhere to the framework of rigor of formal mathematical practice. Common areas of pseudomathematics are solutions of problems proved to be unsolvable or recognized as extremely hard by experts, as well as attempts to apply mathematics to non-quantifiable ...