A graph, for plotting the dynamic response of a vertical mass-spring-damper system, should appear in the canvas area to the left if this page is displayed with an HTML5 capable and JavaScript enabled browser such as Firefox (v 3.6+) or Opera (v 10.6+).

Runge-Kutta 4th order integration method applied to an ideal vertical mass-spring-damper system defined by the 2nd order linear differential equation
   a = g - (k/m)*x - (c/m)*v
with the following initial conditions and specified spring properties:

  Simulation Control
  Click to set following to defaults.
      Gravitational field enabled
  Mass (m)
  Spring constant (k>0)
  Damping coefficient (c)
  Unstressed spring length (len)
  Initial mass displacement (x0)
  Initial mass velocity (v0)
  Simulation time maximum (tmax)
  Integration time increment (tinc)