To visualize the frequency response of an LTI system, follow these steps:

1. Choose a system from the drop-down menu in the central box
2. Enter the parameter values required to adjust the frequency response
3. Click on the "Check" button to display the plot in the figures

The "Parameter 1" and "Parameter 2" for the systems correspond to the following listed parameters:

System	Parameter 1	Parameter 2
Low Pass	Cutoff Frequency	-
High Pass	Cutoff Frequency	-
Band Pass	Lower Cutoff Frequency	Higher Cutoff Frequency
Band Stop	Lower Cutoff Frequency	Higher Cutoff Frequency

To visualize the working of an LTI system over known signals, follow these steps:

1. Choose a signal from the drop-down menu in the left box
2. Choose a system from the drop-down menu in the central box
3. Enter the parameter values required to adjust the frequency response
4. Click on the "Check" button to display the plot in the figures

The "Parameter 1" and "Parameter 2" for the systems correspond to the following listed parameters:

System	Parameter 1	Parameter 2
Low Pass	Cutoff Frequency	-
High Pass	Cutoff Frequency	-
Band Pass	Lower Cutoff Frequency	Higher Cutoff Frequency
Band Stop	Lower Cutoff Frequency	Higher Cutoff Frequency

This section is designed to assess comprehension. The input signal consists of a sum of two sinusoids, and the output of an unknown linear time-invariant (LTI) system is provided. The objective is to determine which filter cannot be used to identify the system.

To check your answer, follow these steps:

1. Choose a filter from the drop-down menu in the central box
2. Click on the "Check" button to verify your answer

The Observations tab located at the bottom displays comments on whether the selected system is the correct choice.

This section is designed to assess understanding, provide feedback, and run simulations on randomly generated inputs. An input signal and the output of an unknown LTI system are provided. The objective is to identify a system and provide parameters for the system that could possibly convert the given input to the given output.

To check your answer and receive feedback, follow these steps:

1. Choose a filter from the drop-down menu in the central box
2. Fill in the required parameter(s)
3. Click on the "Check" button to verify your answer

Please note that multiple solutions may be possible here

The Observations tab located at the bottom displays comments on whether your designed system works as required.