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Volumen 3 (2016): Edición 5 (March 2016)

Detalles de la revista
Formato
Revista
eISSN
2182-1976
Publicado por primera vez
16 Apr 2016
Periodo de publicación
2 veces al año
Idiomas
Inglés

Buscar

Volumen 3 (2016): Edición 5 (March 2016)

Detalles de la revista
Formato
Revista
eISSN
2182-1976
Publicado por primera vez
16 Apr 2016
Periodo de publicación
2 veces al año
Idiomas
Inglés

Buscar

5 Artículos
Acceso abierto

The Triangular Binary Clock

Publicado en línea: 14 Apr 2016
Páginas: 5 - 7

Resumen

Abstract

A new idea for a binary clock is presented. It displays the time using a triangular array of 15 lamps each representing a certain amount of time. It is shown that such a geometric, triangular arrangement is only possible because our system of time divisions is based on a sexagesimal system in which the num- ber of minutes in 12 hours equals the factorial of a natural number (720 = 6!). An interactive applet allows one to “play” with the clock.

Palabras clave

  • binary
  • clock
  • time
  • sexagesimal system
Acceso abierto

Digital Root Patterns of Three-Dimensional Space

Publicado en línea: 14 Apr 2016
Páginas: 9 - 31

Resumen

Abstract

In this study, we define vedic cube as the layout of each digital root in a three-dimensional multiplication table. In order to discover the geometric patterns in vedic cube, we adopt two methods to analyze the digital root in a three-dimensional space. The first method is floor method, which divides vedic cube into several X-Y planes according to different Z values (floors) to analyze the geometric characteristics on each floor. The second method is symmetric plane method, which decomposes vedic cube by its main and secondary symmetric planes.

Palabras clave

  • Digital root
  • pattern
  • vedic square
  • vedic cube
  • symmetry
Acceso abierto

Allégorie de la Géométrie. A Mathematical Interpretation

Publicado en línea: 14 Apr 2016
Páginas: 33 - 45

Resumen

Abstract

In this work, we present a mathematical interpretation for the masterpiece Allégorie de la Géométrie (1649), painted by the French baroque artist Laurent de La Hyre (1606-1656)

Palabras clave

  • Laurent de La Hyre
  • “Allégorie de la Géométrie"
  • baroque art
  • mathematical interpretation
  • perspective
Acceso abierto

Star Tangrams

Publicado en línea: 14 Apr 2016
Páginas: 47 - 60

Resumen

Abstract

The Tangram is a puzzle in which seven tiles are arranged to make various shapes. Four families of tangram shapes have been mathematically defined and their members enumerated. This paper defines a fifth family, enumerates its members, explains its taxonomic relationship with the previously-defined families, and provides some interesting examples

Palabras clave

  • Tangrams
  • combinatorics
  • spatial puzzles
Acceso abierto

Endless Love: On the Termination of a Playground Number Game

Publicado en línea: 14 Apr 2016
Páginas: 61 - 78

Resumen

Abstract

A simple and popular childhood game, loves or the love calculator, involves an iterated rule applied to a string of digits and gives rise to surprisingly rich behaviour. Traditionally, players’ names are used to set the initial conditions for an instance of the game: its behaviour for an exhaustive set of pairings of popular UK childrens’ names, and for more general initial conditions, is examined. Convergence to a fixed outcome (the desired result) is not guaranteed, even for some plausible first name pairings. No pairs of top-50 common first names exhibit non-convergence, suggesting that it is rare in the playground; however, including surnames makes non-convergence more likely due to higher letter counts (for example, “Reese Witherspoon loves Calvin Harris”). Difierent game keywords (including from difierent languages) are also considered. An estimate for non-convergence propensity is derived: if the sum m of digits in a string of length w obeys m > 18=(3=2/)w-4, convergence is less likely. Pairs of top UK names with pairs of ‘O’s and several ‘L’s (for example, Chloe and Joseph, or Brooke and Scarlett) often attain high scores. When considering individual names playing with a range of partners, those with no loves letters score lowest, and names with intermediate (not simply the highest) letter counts often perform best, with Connor and Evie averaging the highest scores when played with other UK top names.

Palabras clave

  • Number games
  • name statistics
  • dynamic integer sequences
  • mathematics in schools
5 Artículos
Acceso abierto

The Triangular Binary Clock

Publicado en línea: 14 Apr 2016
Páginas: 5 - 7

Resumen

Abstract

A new idea for a binary clock is presented. It displays the time using a triangular array of 15 lamps each representing a certain amount of time. It is shown that such a geometric, triangular arrangement is only possible because our system of time divisions is based on a sexagesimal system in which the num- ber of minutes in 12 hours equals the factorial of a natural number (720 = 6!). An interactive applet allows one to “play” with the clock.

Palabras clave

  • binary
  • clock
  • time
  • sexagesimal system
Acceso abierto

Digital Root Patterns of Three-Dimensional Space

Publicado en línea: 14 Apr 2016
Páginas: 9 - 31

Resumen

Abstract

In this study, we define vedic cube as the layout of each digital root in a three-dimensional multiplication table. In order to discover the geometric patterns in vedic cube, we adopt two methods to analyze the digital root in a three-dimensional space. The first method is floor method, which divides vedic cube into several X-Y planes according to different Z values (floors) to analyze the geometric characteristics on each floor. The second method is symmetric plane method, which decomposes vedic cube by its main and secondary symmetric planes.

Palabras clave

  • Digital root
  • pattern
  • vedic square
  • vedic cube
  • symmetry
Acceso abierto

Allégorie de la Géométrie. A Mathematical Interpretation

Publicado en línea: 14 Apr 2016
Páginas: 33 - 45

Resumen

Abstract

In this work, we present a mathematical interpretation for the masterpiece Allégorie de la Géométrie (1649), painted by the French baroque artist Laurent de La Hyre (1606-1656)

Palabras clave

  • Laurent de La Hyre
  • “Allégorie de la Géométrie"
  • baroque art
  • mathematical interpretation
  • perspective
Acceso abierto

Star Tangrams

Publicado en línea: 14 Apr 2016
Páginas: 47 - 60

Resumen

Abstract

The Tangram is a puzzle in which seven tiles are arranged to make various shapes. Four families of tangram shapes have been mathematically defined and their members enumerated. This paper defines a fifth family, enumerates its members, explains its taxonomic relationship with the previously-defined families, and provides some interesting examples

Palabras clave

  • Tangrams
  • combinatorics
  • spatial puzzles
Acceso abierto

Endless Love: On the Termination of a Playground Number Game

Publicado en línea: 14 Apr 2016
Páginas: 61 - 78

Resumen

Abstract

A simple and popular childhood game, loves or the love calculator, involves an iterated rule applied to a string of digits and gives rise to surprisingly rich behaviour. Traditionally, players’ names are used to set the initial conditions for an instance of the game: its behaviour for an exhaustive set of pairings of popular UK childrens’ names, and for more general initial conditions, is examined. Convergence to a fixed outcome (the desired result) is not guaranteed, even for some plausible first name pairings. No pairs of top-50 common first names exhibit non-convergence, suggesting that it is rare in the playground; however, including surnames makes non-convergence more likely due to higher letter counts (for example, “Reese Witherspoon loves Calvin Harris”). Difierent game keywords (including from difierent languages) are also considered. An estimate for non-convergence propensity is derived: if the sum m of digits in a string of length w obeys m > 18=(3=2/)w-4, convergence is less likely. Pairs of top UK names with pairs of ‘O’s and several ‘L’s (for example, Chloe and Joseph, or Brooke and Scarlett) often attain high scores. When considering individual names playing with a range of partners, those with no loves letters score lowest, and names with intermediate (not simply the highest) letter counts often perform best, with Connor and Evie averaging the highest scores when played with other UK top names.

Palabras clave

  • Number games
  • name statistics
  • dynamic integer sequences
  • mathematics in schools

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