NiiL

Week 1 · Getting Started with Control Systems and MATLAB

English translation

Before practice

01 The controlled system and goal

Example scenario To maintain a room at a desired temperature, what must you be able to measure and adjust?

Description
  • Specify the measured output, such as temperature, and its target range
  • Identify adjustable inputs, such as heating output

02 Why use computational tools?

How can examining responses on a computer help before changing a physical device?

Description
  • Comparing responses to different control actions using a model can narrow down candidates to test on the actual device.
  • MATLAB supports calculation and visualization. Judge whether results are appropriate using the objective and model assumptions.

Practice

1. Check the environment

  1. Change to a=0:0.5:3, then display numel(a) and a.^2. Record the number of elements and the square of each element.

2. First plot

  1. Calculate cos(t) using the same t as the “2. First plot” code in the practice Live Script, and plot it with sin(t) in the same figure.
  2. Use the legend to distinguish the sine and cosine curves. Retain a figure showing both curves.

Submission and saving

Include code, actual outputs and plots, and your own interpretation. Submit through KLAS; check the semester schedule and latest announcements for the deadline.

Filename: Name_StudentID_Week1.mlx.

Restart the runtime, run all code from the top, then save.

Optional practice

Example: Omitting the dot operator in an array operation

  1. In a=1:5, run only the line with a.^2 changed to a^2 separately, and retain the error message.
  2. State whether you intend matrix exponentiation or element-wise squaring. Restore that line to a.^2 and record all five results.