Lecture
This lecture covers the concept of Bode diagrams, which are used to visualize the gain and phase of a system as a function of frequency. The diagrams are represented on a logarithmic scale and provide a simplified graphical resolution for analyzing controlled systems. The lecture explains the significance of Bode diagrams in understanding the behavior of systems in the frequency domain, with examples like an RC filter. It also discusses properties related to logarithms and angular frequency, along with the phase calculation in Bode diagrams. Additionally, the lecture introduces the general form of transfer functions that can be represented in Bode form.