Etymologie, Etimología, Étymologie, Etimologia, Etymology, (griech.) etymología, (lat.) etymologia, (esper.) etimologio
US Vereinigte Staaten von Amerika, Estados Unidos de América, États-Unis d'Amérique, Stati Uniti d'America, United States of America, (esper.) Unuigintaj Statoj de Ameriko
Graphentheorie, Teoría de grafos, Théorie des graphes, Teoria dei grafi, Graph theory, (esper.) grafeteorio

desmos
Graphing Calculator

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.

Graphing Calculator

graph.tk
Kurvenberechnungen

Instant Insanity (W3)

Graphical Solutions to Instant Insanity Puzzles, Combinatorics of These Puzzles, and Their Generalizations

1.4 Instant Insanity

So far, our motivation for studying graph theory has largely been one of philosophy and language. Before we get too much deeper, however, it may be useful to present a nontrivial and perhaps unexpected application of graph theory; an example where graph theory helps us to do something that would be difficult or impossible to do without it.
...

MAS 341: Graph Theory

Lecture 2: Instant Insanity, Isomorphisms

"Instant Insanity" is the name given by Parker Brothers to their 1967 version of a puzzle which has existed since antiquity, and which has been marketed many toy and puzzle makers under a variety of names, including: "Devil's Dice" (Pressman); "DamBlocks" (Schaper); "Logi-Qubes" (Schaeffer); "Logi Cubes" (ThinkinGames); "Daffy Dots" (Reiss); "Those Blocks" (Austin); "PsykoNosis" (A to Z Ideas), and many others.
...

Instant Insanity Puzzle | Infinite Series

oracleofbacon
Oracle of Bacon
Shortest Path between Pairs of Actors

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.

wolframalpha
Graphen zeichnen

Extended Keyboard - Directly enter math and other symbols.

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 e^x from x=0 to 10

plot a function where it is real-valued

• real plot -(sqrt(25-y^2))

plot a special function

• plot Ai(x)

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

• log plot e^x-x

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

• plot sin x cos y

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

• plot 3x^2-2xy+y^2=1

Inequalities

plot the region satisfying an inequality in two variables

• plot |x|^3+|y|^3<1

plot a region satisfying multiple inequalities

• plot x^2+y^2<1 and y>x

Polar Plots

draw a polar plot

• polar plot r=1+cos theta

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