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- 13:38, 30 April 2016 diff hist +2 Linear and Time Invariant Systems/System Description in Frequency Domain
- 19:59, 20 April 2016 diff hist -1 Signal Representation/Fast Fourier Transform (FFT)
- 19:57, 20 April 2016 diff hist +34 Exercise 5.5: Fast Fourier Transform
- 19:56, 20 April 2016 diff hist +17 Exercise 5.4: Comparison of Rectangular and Hanning Window
- 19:56, 20 April 2016 diff hist +44 Exercise 5.3: Mean Square Error
- 19:55, 20 April 2016 diff hist +38 Exercise 5.2: Inverse Discrete Fourier Transform
- 19:55, 20 April 2016 diff hist +32 Exercise 5.1: Sampling Theorem
- 19:54, 20 April 2016 diff hist +64 Exercise 4.6: Locality Curve for SSB-AM
- 19:54, 20 April 2016 diff hist +64 Exercise 4.5: Locality Curve for DSB-AM
- 19:52, 20 April 2016 diff hist +2 Signal Representation/Analytical Signal and its Spectral Function
- 19:16, 20 April 2016 diff hist +67 Exercise 4.4: Pointer Diagram for DSB-AM
- 19:15, 20 April 2016 diff hist +7 Exercise 4.3: Pointer Diagram Representation
- 19:14, 20 April 2016 diff hist +58 Exercise 4.3: Pointer Diagram Representation
- 19:12, 20 April 2016 diff hist +58 Exercise 4.2: Rectangular Spectra
- 19:09, 20 April 2016 diff hist 0 Signal Representation/Differences and Similarities of Low-Pass and Band-Pass Signals
- 19:08, 20 April 2016 diff hist +58 Exercise 4.1: Low-Pass and Band-Pass Signals
- 19:08, 20 April 2016 diff hist +4 Exercise 3.9: Convolution of Rectangle and Gaussian Pulse
- 19:07, 20 April 2016 diff hist +185 Exercise 3.9: Convolution of Rectangle and Gaussian Pulse
- 18:48, 20 April 2016 diff hist +153 Exercise 3.7: Synchronous Demodulator
- 18:44, 20 April 2016 diff hist +52 Exercise 3.6: Even and Odd Time Signals
- 18:42, 20 April 2016 diff hist +8 Exercise 3.6: Even and Odd Time Signals
- 18:41, 20 April 2016 diff hist +1 Exercise 3.6: Even and Odd Time Signals
- 18:40, 20 April 2016 diff hist +37 Exercise 3.6: Even and Odd Time Signals
- 18:39, 20 April 2016 diff hist +78 Exercise 3.6: Even and Odd Time Signals
- 18:35, 20 April 2016 diff hist +209 Exercise 3.5: Differentiation of a Triangular Pulse
- 18:28, 20 April 2016 diff hist +1 Exercise 3.5: Differentiation of a Triangular Pulse
- 18:28, 20 April 2016 diff hist +46 Exercise 3.5: Differentiation of a Triangular Pulse
- 18:28, 20 April 2016 diff hist +47 Exercise 3.4: Trapezoidal Spectrum and Pulse
- 18:27, 20 April 2016 diff hist +4 Signal Representation/Special Cases of Pulses
- 18:27, 20 April 2016 diff hist +43 Exercise 3.3: From the Signal to the Spectrum
- 18:26, 20 April 2016 diff hist +48 Exercise 3.2: From the Spectrum to the Signal
- 18:26, 20 April 2016 diff hist +48 Exercise 3.1: Spectrum of the Exponential Pulse
- 18:26, 20 April 2016 diff hist +14 Exercise 2.6: Complex Fourier Series
- 18:25, 20 April 2016 diff hist +14 Exercise 2.5: Half-Wave Rectification
- 18:25, 20 April 2016 diff hist +14 Exercise 2.4: Rectified Cosine
- 18:24, 20 April 2016 diff hist +24 Exercise 2.3: Cosine and Sine Components
- 18:24, 20 April 2016 diff hist +53 Exercise 2.2: DC Component of Signals
- 18:23, 20 April 2016 diff hist +25 Exercise 2.1: Rectification
- 18:21, 20 April 2016 diff hist -29 Exercise 1.3: Calculating with Complex Numbers
- 18:21, 20 April 2016 diff hist +8 Exercise 1.3: Calculating with Complex Numbers
- 18:20, 20 April 2016 diff hist -52 Exercise 1.3: Calculating with Complex Numbers
- 18:19, 20 April 2016 diff hist -1 Exercise 1.3: Calculating with Complex Numbers
- 18:19, 20 April 2016 diff hist -1 Exercise 1.3: Calculating with Complex Numbers
- 18:18, 20 April 2016 diff hist 0 Exercise 1.3: Calculating with Complex Numbers
- 18:15, 20 April 2016 diff hist +237 Exercise 5.5: Fast Fourier Transform
- 18:09, 20 April 2016 diff hist +96 Exercise 5.5: Fast Fourier Transform
- 18:05, 20 April 2016 diff hist +6 Exercise 5.3: Mean Square Error
- 18:04, 20 April 2016 diff hist +19 Exercise 5.4: Comparison of Rectangular and Hanning Window
- 18:03, 20 April 2016 diff hist +2 Exercise 5.4: Comparison of Rectangular and Hanning Window
- 18:02, 20 April 2016 diff hist +14 Exercise 5.4: Comparison of Rectangular and Hanning Window