- 23:29, 13 January 2021 diff hist -60 Exercise 2.4: Rectified Cosine
- 23:23, 13 January 2021 diff hist -14 Exercise 2.3Z: Oscillation Parameters
- 23:00, 13 January 2021 diff hist -5 Exercise 2.3Z: Oscillation Parameters
- 22:59, 13 January 2021 diff hist -15 Exercise 2.3Z: Oscillation Parameters
- 22:36, 13 January 2021 diff hist -5 Exercise 2.3Z: Oscillation Parameters
- 22:30, 13 January 2021 diff hist -10 Exercise 2.3Z: Oscillation Parameters
- 05:00, 4 January 2021 diff hist -46 Exercise 2.3: Cosine and Sine Components
- 04:37, 4 January 2021 diff hist -40 Exercise 2.3: Cosine and Sine Components
- 04:31, 4 January 2021 diff hist -47 Exercise 2.3: Cosine and Sine Components
- 04:14, 4 January 2021 diff hist -35 Exercise 2.2Z: Non-Linearities
- 03:52, 4 January 2021 diff hist +3 Exercise 2.2: DC Component of Signals
- 03:40, 4 January 2021 diff hist -58 Exercise 2.2: DC Component of Signals
- 03:22, 4 January 2021 diff hist +5 Exercise 2.2: DC Component of Signals
- 03:10, 4 January 2021 diff hist -46 Exercise 2.2: DC Component of Signals
- 03:05, 4 January 2021 diff hist -16 Exercise 2.1Z: Sum Signal
- 01:55, 27 December 2020 diff hist +33 Exercise 2.1Z: Sum Signal
- 01:44, 27 December 2020 diff hist +11 Exercise 2.1Z: Sum Signal
- 01:36, 27 December 2020 diff hist -41 Exercise 2.1Z: Sum Signal
- 01:31, 27 December 2020 diff hist -34 Exercise 2.1: Rectification
- 01:07, 27 December 2020 diff hist -49 Exercise 2.1: Rectification