Everything in the catalog

Interactive walk-through of neurons, layers and activation in a small network.

Interactive illustration of precision, recall and how they trade off.

Visual essay on how bagging many trees makes a random forest.

Move a classification threshold and see the ROC curve and AUC respond.

Web viewer for 3D structures of proteins, nucleic acids and ligands from PDB files.

Official open-source French simulator for gross, net and employer cost of a salary.

Simulates a mass on a spring moving in two dimensions.

Compares tracks to find the shape giving the quickest slide between two points.

Simulates a car body on springs and dampers driving over bumps.

Models a pendulum on a cart driven along a track with graphs of the motion.

Simulates a chain of masses on springs and the waves along it.

Drives a pendulum to show chaotic motion and phase-space plots.

Two blocks joined by springs collide with walls and each other.

Runs two double pendulums from nearly equal starts to show sensitive dependence.

Shows how contact forces keep resting rigid bodies from sinking into each other.

Simulates circles and curved objects colliding and rolling.

Simulates a stick hanging from two springs and its swinging motion.

Runs two cars on a roller coaster track and tracks energy.

Two masses on springs in a line with graphs and a phase view.

Drops a chain of linked rigid bodies and lets it swing and settle.

Shows a pendulum balanced upright by vibrating its pivot.

Simulates a moon orbiting Mars with adjustable starting conditions.

Lets you move the pivot of a pendulum and watch how motion responds.

Shows bodies pulling on each other by gravity.