Particle systems are complex exercises that create visually interesting results. The mathematical integrator used is Semi-Implicit Euler and the number of particles vary depending on the exercise.
Simulate an object falling into a water surface. We use floating physics to determine its drawback. The particle system creates a small splash effect that decreases as the strength of the object decreases. Press "r" to reset object.
Simulate a small fountain that will emit a constant flow of particles on varying paths. The particles are deleted over time.
Simulate smoke coming from a fire. The particles are deleted over time.
The base particle system code can be found here