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The On-Line Encyclopedia of Integer Sequences® (OEIS®)

General Information About OEISMost people use the OEIS to get information about a particular number sequence. If you are a new visitor, then you might ask the database if it can recognize your favorite sequence, if you have one. To do this, go to the main look-up page, enter the sequence, and click Submit. You could also look for your sequence in the Index.You might also look at the demonstration pages to see more examples of how to use the OEIS.If your favorite sequence isn't in the database, and if it is interesting, please submit it using the web page for Contributing a new sequence or comment. Of course the sequence should be well-defined, of general interest and ideally it should be infinite. Short sequences such as phone numbers are not appropriate. Before submitting a new sequence, you must first register.If you have stumped the database, you can try Superseeker, which tries really hard to identify a sequence. Send an empty email message to superseeker@oeis.org to get instructions.You can browse the database, using the WebCam. This can be set to look at the most interesting sequences, recent additions, or sequences needing more terms. It can be quite addictive!It is also interesting to browse the Index to the OEIS to see the variety of topics that are covered. In a way the OEIS can be regarded as an index to all of science. It is like a dictionary or fingerprint file for number sequences.
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Nem sabia que havia uma enciclopédia de sequências!

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MatNet

Matemática da net na sala de aula
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20+ Photos Of Geometrical Plants For Symmetry Lovers

Who said math can’t be interesting? Fractals like these can seem too perfect to be true, but they occur in nature and plants all the time and are examples of math, physics, and natural selection at work!
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Awesome Interactive Simulations for Learning Math and Science

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Sete pontes de Königsberg. Sete pontes de Konigsberg. Mapas de Königsberg. Teoria dos grafos.
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Who Decided to Put 60 Seconds in a Minute?

One highly influential ancient Middle Eastern civilization established some of the essential systems we still use today. Think you know which it is?
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8 del 8: 8 historias con el 8

Hoy es 8 de agosto (8/8): aprovechamos para contar 8 historias con el 8... 1.- Empezamos con el Premio Nobel de Literatura Octavio Paz y su Adivinanza en forma de octágono: Coloque cada una de las ...
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Simuladores, Softwares e Outros | TIC na Matemática

Página com referências a respeitos de vários recursos computacionais úteis ao ensino e aprendizagem em Matemática.
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Xataka - Nueve películas de, por y para matemáticos

Lista de películas sobre matemáticas y...
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Jack and the Giant

A Love Like Pi - Jack and the Giant (Official video) Music: alovelikepi.com iTunes: https://itunes.apple.com/us/album/jack-and-the-giant-e.p./id934422955 SoundCloud:…
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Tales de Mileto y el caso del gato que venía del cielo | Matemoción | Cuaderno de Cultura Científica

Una de mis últimas lecturas ha sido el libro El gato que venía del cielo, de Takashi Hiraide, publicado en Alfaguara en 2014 (aunque la obra original en japonés es del año 2001). Portada de la novela El gato que venía del cielo, Takashi Hiraide,
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Popular origami pattern makes the mechanical switch

An origami paper-folding pattern called the square twist is the basis of a microscopic switch that Cornell physicists say could lead to origami-inspired materials and machines.
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Os números - Desafios Matemáticos!

Site de divulgação da Matemática.
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Free Technology for Teachers: Video - How to Create Custom Columns on Padlet Walls

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10 Innovative Ways to Bring STEM to Schools

As schools look for innovative ways to bring in STEM learning, here's a possible road map for how to galvanize a school community.
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Rosenthal Prize for Innovation in Math Teaching – The Museum of Mathematics

The Museum of Mathematics: Inspiring math exploration and discovery
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La geometría de los ‘cristaloides’, según Léopold Hugo | Matemoción | Cuaderno de Cultura Científica

El conde Léopold Armand Hugo (1828-1895) era el sobrino del escritor Victor Hugo (1802-1885), el hijo de su hermano –y también escritor– Abel Hugo (1798-1855). Trabajó como funcionario en el ministère des Travaux publics, aunque se
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¿Puede una rana hacerse tan grande como un buey? Banach y Tarski responden

Divulgamat - Centro Virtual de Divulgación de las Matemáticas
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Análise do gráfico da função quadrática utilizando uma planilha eletrônica no Calc | TIC na Matemática

Planilha editada no Calc, que permite relacionar características de uma função quadrática com o seu gráfico.
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Sobre la importancia de la enseñanza de la geometría

En el décimo aniversario del fallecimiento de Donald Coxeter, os dejo unas palabras sobre la importancia de la enseñanza de la geometría: Geometry still possesses all those virtues that the educato...
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The Mathematical Movie Database

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A Brief History of Number π

by D.Kanoussis The mathematical constant, today known as π = 3.14159... is undeniably one of the most famous mathematical constants. The number π, was known to the ancient Greeks, since the 5th ...
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El número de Erdős-Bacon-Sabbath | Matemoción | Cuaderno de Cultura Científica

Entre la gente que hace matemáticas se suele hablar mucho del número de Erdős. Paul Erdős (1913-1996) fue uno de los más prolíficos matemáticos en cuanto a publicaciones científicas: unos 1.500 artículos y más de 500 coautores. ¿Qué
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Home | All you need is code

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One Reason Fractions (and Many Other Topics) Are Hard: Equivalence Relations Up and Down the Mathematics Curriculum | On Teaching and Learning Mathematics

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Utilisation du logiciel GEOGEBRA pour illustrer certaines notions d'analyse - Les nouvelles technologies pour l'enseignement des mathématiques

Autres articles de l’auteur Cet article peut être librement diffusé à l’identique dans la limite d’une utilisation non commerciale suivant la licence (...)
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