Lorenz Attractor Periodic Orbits
The butterfly-like Lorenz attractor is a simplified model of two-dimensional convective fluid flow and is one of the best known images of chaos. Embedded in this attractor are unstable periodic orbits described by Viswanath and this model computes a number of these orbits. Each periodic orbit is classified by the number of times the trajectory orbits the A and B fixed points before it repeats. Note that because the attractor is chaotic and because of numerical errors and the finite precision of
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Linear Congruent Number Generator
The Linear Congruent Number Generator Model The method generates a sequence of integers xi over the interval [0, m-1] by the recurrence relation x[i+1] = (ax[i]+c) mod m Where the modulus m is greater than zero, the multiplier a is greater than zero and less than m, and the increment c is greater than zero and less than m. All numbers are integers and all arithmetic is integer arithmetic. The initial value x0 is known as the seed. 
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Scalar Field Gradient Model
The Scalar Field Gradient Model displays the gradient of a scalar field using a numerical approximation to the partial derivatives. This simple teaching model also shows how to display and model scalar and vector fields using EJS.
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Multiple Coin Toss Model
The EJS Multiple Coin Toss model displays the result of the flipping of N coins. The result of each set of coin flips is shown by the image of the pennies on the screen and the complete results of the tossing experiment is shown on a graph of the cumulative probability of heads. The number of coins flipped, N, and change the "fairness" of the coin by setting the probability of a "heads" result, p, can be set via text boxes.
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Valeur moyenne d’une fonction sur un intervalle
Valeur moyenne d'une fonction sur un intervalle
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Thalés
Théorème de Thalés
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Statistisque
Statistisque
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Simplification
Simplification
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Sens de la soustraction
Sens de la soustraction
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Sens de la multiplication
La multiplication remplace l'addition de plusieurs nombres égaux.
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Rendre rationnel
Rendre rationnel
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Racine d’un réel
Racine d'un réel
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Racine d’un réel
Racine d'un réel
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Quand faire une division ?
Quand faire une division ?
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Puissances
Puissances
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Propriétés des intégrales de fonctions paires, impaires périodiques
Propriétés des intégrales de fonctions paires, impaires périodiques
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Propriétés de l’intégrale
Propriétés de l'intégrale
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Pratique de la multiplication : les nombres entiers
Pratique de la multiplication : les nombres entiers
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Pratique de la multiplication : les nombres décimaux
Pratique de la multiplication : les nombres décimaux
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Petite racine carrée
Petite racine carrée
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