Amplitude and Phase: 1^{st} order |
Heat Equation |

Amplitude and Phase: 2^{nd} order |
Isoclines |

Amplitude and Phase: 2^{nd} order, II |
Linear Phase Portraits: Cursor Entry |

Beats |
Linear Phase Portraits: Matrix Entry |

Complex Exponential |
Linearized Trigonometry |

Complex Roots |
Matrix Vector |

Convolution: Accumulation |
Phase Lines |

Convolution: Flip and Drag |
Poles and Vibrations |

Damped Vibration |
Solution Targets |

Damping Ratio |
Taylor Polynomials |

Euler's Method |
Trigonometric Id |

Forced Damped Vibration |
Waves |

Fourier Coefficients |
Waves II |

Harmonic Frequency Response |
Wheel |

Harmonic Frequency Response II |
Wheel II |