===== Online apps =====
  - //[[http://demonstrations.wolfram.com/NumericalIntegrationUsingRectanglesTheTrapezoidalRuleOrSimps|Numerical Integration using Rectangles, the Trapezoidal Rule, or Simpson's Rule from The Wolfram Demonstrations Project]]//
  - //[[http://demonstrations.wolfram.com/MotionOfASimplePendulumWithDamping|Motion of a Simple Pendulum with Damping from The Wolfram Demonstrations Project]]//
  - //[[http://demonstrations.wolfram.com/WorkInAnAttractiveInverseSquareField|Work in an Attractive Inverse-Square Field" from The Wolfram Demonstrations Project]]//
  - //[[http://demonstrations.wolfram.com/DrivenDampedOscillatorWithResonanceEffect|Driven Damped Oscillator with Resonance Effect" from The Wolfram Demonstrations Project]]//