- 23:38, 13 January 2021 diff hist +2 Exercise 2.4: Rectified Cosine
- 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
- 00:57, 27 December 2020 diff hist +1 Exercise 2.1: Rectification
- 00:50, 27 December 2020 diff hist -16 Exercise 1.3Z: Calculating with Complex Numbers II
- 00:43, 27 December 2020 diff hist -22 Exercise 1.3Z: Calculating with Complex Numbers II
- 00:19, 27 December 2020 diff hist -38 Exercise 1.3Z: Calculating with Complex Numbers II
- 00:08, 27 December 2020 diff hist +16 Exercise 1.3Z: Calculating with Complex Numbers II
- 16:17, 25 December 2020 diff hist -1 Exercise 1.3: Calculating with Complex Numbers
- 16:16, 25 December 2020 diff hist -6 Exercise 1.3: Calculating with Complex Numbers
- 15:54, 25 December 2020 diff hist -12 Exercise 1.3: Calculating with Complex Numbers
- 15:49, 25 December 2020 diff hist -6 Exercise 1.3: Calculating with Complex Numbers
- 15:39, 25 December 2020 diff hist -24 Exercise 1.3: Calculating with Complex Numbers
- 15:18, 25 December 2020 diff hist -3 Exercise 1.3: Calculating with Complex Numbers
- 15:09, 25 December 2020 diff hist -2 Exercise 1.2Z: Puls Code Modulation
- 15:05, 25 December 2020 diff hist +2 Exercise 1.2Z: Puls Code Modulation
- 15:00, 25 December 2020 diff hist -66 Exercise 1.2Z: Puls Code Modulation
- 14:55, 25 December 2020 diff hist -2 Exercise 1.2: Signal Classification
- 14:47, 25 December 2020 diff hist +23 Exercise 1.1Z: ISDN Connection
- 14:44, 25 December 2020 diff hist +12 Exercise 1.1: Music Signals
- 14:40, 25 December 2020 diff hist -9 Exercise 1.2Z: Puls Code Modulation
- 14:25, 25 December 2020 diff hist +1 Exercise 1.2Z: Puls Code Modulation
- 13:26, 22 December 2020 diff hist -1 Exercise 1.1Z: ISDN Connection
- 13:26, 22 December 2020 diff hist +4 Exercise 1.1: Music Signals
- 13:25, 22 December 2020 diff hist -1 Exercise 1.1: Music Signals
- 13:24, 22 December 2020 diff hist -1 Exercise 1.2: Signal Classification
- 13:17, 22 December 2020 diff hist +28 Exercise 1.2: Signal Classification
- 12:51, 22 December 2020 diff hist +7 Exercise 1.2: Signal Classification
- 12:19, 22 December 2020 diff hist +15 Exercise 1.1Z: ISDN Connection
- 12:01, 22 December 2020 diff hist +4 Exercise 1.1: Music Signals
- 11:59, 22 December 2020 diff hist -8 Exercise 1.1: Music Signals
- 11:29, 22 December 2020 diff hist -1 Exercise 1.1: Music Signals