draw unit-step response curves in matlab

To plot unit-step response curves in matlab, you can follow these steps:

1. Define the transfer function of the system using tf function.
2. Use step function to get the unit-step response of the system.
3. Plot the response using plot function.

Here's an example code to draw a unit-step response curve of a transfer function H=1/(s+1):

main.m
s = tf('s'); % define variable s

H = 1/(s+1); % define the transfer function

step(H); % get the step response of the system

grid on; % turn on grid lines for better visualization

title('Unit-Step Response Curve'); % add title to the plot

xlabel('Time (sec)'); % add label for x-axis

ylabel('Amplitude'); % add label for y-axis

334 chars
15 lines

This code will produce a plot of unit-step response curve for the transfer function H=1/(s+1).