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Etymologie, Etimología, Étymologie, Etimologia, Etymology

US Vereinigte Staaten von Amerika, Estados Unidos de América, États-Unis d'Amérique, Stati Uniti d'America, United States of America

Graphentheorie, Teoría de grafos, Théorie des graphes, Teoria dei grafi, Graph theory

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### desmos

Graphing Calculator

(E?)(L1) http://www.desmos.com/

Interactive education. For every platform.

For everyone.

At Desmos, we envision a world where educational technology is universally accessible—and fun to use.

Our first step: reinventing the graphing calculator. It's powerful, beautiful, free, and completely in-browser.

(E?)(L1) https://www.desmos.com/calculator

Graphing Calculator

Erstellt: 2012-08

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### graph.tk

Kurvenberechnungen

(E?)(L1) http://graph.tk/

Erstellt: 2012-01

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### oracleofbacon

Oracle of Bacon

Shortest Path between Pairs of Actors

(E?)(L?) http://www.oracleofbacon.org/

(E?)(L?) http://oracleofbacon.org/help.php

About the Oracle of Bacon

This is the most comprehensive version of the Kevin Bacon game on the web. The object of the game is to start with any actor or actress who has been in a movie and connect them to Kevin Bacon in the smallest number of links possible. Two people are linked if they've been in a movie together. We do not consider links through television shows, made-for-tv movies, writers, producers, directors, etc. For example, you might wonder how Mary Pickford can be connected to Kevin Bacon. One answer is that:

Mary Pickford was in Coquette (1929) with Louise Beavers was in All the Fine Young Cannibals (1960) with Robert Wagner (I) was in Wild Things (1998) with Kevin Bacon

Then we can count how many links were necessary and assign the actor or actress a Bacon number. Bacon numbers higher than 4 are very rare. In the example above, Mary Pickford has a Bacon number of 3. The Oracle uses the data from the Internet Movie Database and can give you the shortest path from every actor and actress that can be connected to Kevin Bacon.

Erstellt: 2012-01

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### wolframalpha

Graphen zeichnen

(E?)(L1) http://www.wolframalpha.com/

Extended Keyboard - Directly enter math and other symbols.

(E?)(L1) http://www.wolframalpha.com/examples/PlottingAndGraphics.html

Plotting & Graphics

Functions

plot a function of one variable
- plot x^3 - 6x^2 + 4x + 12
- graph sin t + cos (sqrt(3)t)
- plot 4/(9*x^(1/4))

specify an explicit range for the variable
plot a function where it is real-valued
- real plot -(sqrt(25-y^2))

plot a special function
plot several functions
- plot sin x, cos x, tan x
- plot x e^-x, x^2 e^-x, x=0 to 8

plot a function on a logarithmic scale
plot on a log-linear scale
- log-linear plot x^2 log x, x=1 to 10

3D Plots

plot a function of two variables
specify explicit ranges for the variables
- plot x^2 y^3, x=-1..1, y=0..3

Equations

plot the solution to an equation in two variables
Inequalities

plot the region satisfying an inequality in two variables
plot a region satisfying multiple inequalities
Polar Plots

draw a polar plot
specify a range for the variable theta
- polar plot r=theta, theta=0 to 8 pi

Parametric Plots

draw a parametric plot
- parametric plot (cos^3 t, sin^3 t)

specify a range for the parameter
- parametric plot (sin 10t, sin 8t), t=0..2pi

Number Lines »

visualize a set of real numbers on a number line
- number line 2, 3, 5, 7, 11, 13

show multiple sets on a number line
- number line x^2>5, 0<=x<3

Erstellt: 2012-08

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