En el siguiente video tenemos una conversación entre los números pi y e, una conversación un tanto "irracional y trascendente". El video está en inglés y la traducción al castellano la podemos encontar en divulgamat, en la sección Cultura y Matemáticas, en donde ví el video y lo publiqué en mi blog, del cual es el enlace que comparto con tod@s vosotr@s. Espero que os guste.
Online Function Grapher
Interactive 2D Function Plotter and Graphing Calculator
Para pintar gráficas de una manera cómoda, sin instalación ni registro alguno. La ayuda se encuentra al pie de página, aunque está en inglés, es bastante intuitiva, sigue la nomenclatura matemática tradicional. Permite salvar la imagen con diferentes opciones e incluso enlazar.
Mathway es una aplicación web que permite resolver problemas matemáticos online.
Herramienta gratuita que no requiere registro para poderla usar.
Resuelve paso a paso problemas de diferentes bloques de contenidos, paso a paso, descubriendo la manera de llegar a la solución.
MATHEMATICAL TREASURES
Historical mathematical materials, including texts, documents, and artifacts from the collections of David Eugene Smith and George Arthur Plimpton. These treasures are online through the cooperation of Columbia University Libraries and The Mathematical Association of America.
See the full index of Mathematical Treasures on the MAA Mathematical Sciences Digital Library.
Fibonacci Numbers and the Golden Section
This is the Home page for Dr Ron Knott's multimedia web site on the Fibonacci numbers, the Golden section and the Golden string hosted by the Mathematics Department of the University of Surrey, UK.
The Fibonacci numbers are 0, 1, 1, 2, 3, 5, 8, 13, ... (add the last two to get the next)
The golden section numbers are ±0·61803 39887... and ±1·61803 39887...
The golden string is 1 0 1 1 0 1 0 1 1 0 1 1 0 1 0 1 1 0 1 ...
a sequence of 0s and 1s that is closely related to the Fibonacci numbers and the golden section.
There is a large amount of information here on the Fibonacci Numbers and related series and the on the Golden section, so if all you want is a quick introduction then the first link takes you to an introductory page on the Fibonacci numbers and where they appear in Nature.
The rest of this page is a brief introduction to all the web pages at this site on
Fibonacci Numbers the Golden Section and the Golden String
together with their many applications.
"Toomates és una iniciativa educativa, cultural i no comercial per a la promoció i reivindicació d'una experiència d'ensenyament-aprenentatge de les matemàtiques basada en la utilització, creació i difusió de materials didàctics lliures.
Tots els materials de Toomates segueixen la filosofia Creative-Commons: Es permet qualsevol ús, modificació, còpia i distribució, sempre que siguin emprats en àmbits educatius, sense ànim de lucre i se'n citi l'autoria i la procedència.
Aquesta web és totalment gratuïta, i ni en demana ni n'emmagatzema dades personals.
Els recursos es gestionen mitjançant un Entorn Virtual d'Aprenentatge (EVA) propi anomenat Col·lectiva desenvolupat totalment amb software lliure Open-Source.
Per obrir els documentsdocument word de Toomates necessites un editor de text, com per exemple l'editor OpenOffice (gratuït)
Descarregar OpenOffice
Per treballar amb les activitats interactives QuètxupQuètxup Exercici necessites un navegador compatible amb MathML, com el Mozilla Firefox (gratuït). Es recomana fer servir el navegador Firefox.
Descarregar Mozilla Firefox
Logo Firefox 3
Iniciativa, desenvolupament i manteniment del projecte: Gerard Romo (toomates@gmail.com) "
Euclid's Elements form one of the most beautiful and influential works of science in the history of humankind. Its beauty lies in its logical development of geometry and other branches of mathematics. It has influenced all branches of science but none so much as mathematics and the exact sciences. The Elements have been studied 24 centuries in many languages starting, of course, in the original Greek, then in Arabic, Latin, and many modern languages.
I'm creating this version of Euclid's Elements for a couple of reasons. The main one is to rekindle an interest in the Elements, and the web is a great way to do that. Another reason is to show how Java applets can be used to illustrate geometry. That also helps to bring the Elements alive.
The text of all 13 Books is complete, and all of the figures are illustrated using the Geometry Applet, even those in the last three books on solid geometry that are three-dimensional. I still have a lot to write in the guide sections and that will keep me busy for quite a while.
This edition of Euclid's Elements uses a Java applet called the Geometry Applet to illustrate the diagrams. If you enable Java on your browser, then you'll be able to dynamically change the diagrams. In order to see how, please read Using the Geometry Applet before moving on to the Table of Contents.