Write a MATLAB program to graph current it in amperes versus

Write a MATLAB program to graph current, i(t), in amperes versus time, t in seconds, for the function i(t) = 50e^(-2t)sin(4t) from t = 0 to 2.5 using about 100 points. Specific requirements include:

a. Use vectors to store the values

b. Include MATLAB commands in the program such that the graph will include: • A title, including your name (for example: i(t) versus t – John Doe) • Axis labels (include variable name, variable symbol, and units) • Gridlines • Linear scales • Blue stars for the points and a dashed line

c. Include plenty of comments in your program.

Solution

t = 0:0.025:2.5; %creating time vector
i = 50.*exp(-2.*t).*sin(4.*pi.*t); %calculating i for each t

%plot
figure
plot(t,i, \'--*\') %plotting the values. Blue stars with dashed lines
grid on %creating grid
title(\'i(t) versus t - John Doe\') %setting title
xlabel(\'time (t) in seconds\') % setting x-axis label
ylabel(\'current (i) in amperes\') % setting y-axis label