a question about plot

Hey, I am new to Matlab. How can I generate a capital letter "F" in a plot? Thank you!

Answer 1

[Star Strider]

Try this:

figure(1)
plot([1 2], [3 3],'k')
hold on
plot([1 1], [1 3],'k')
plot([1 1.7], [2 2],'k')
hold off
axis([0  4    0  4])

Answer 2

[Image Analyst]

Use text():

% Plot some data, or whatever...
plot(0:4, 'b*-') 
% Put a big F on the plot
text(2, 3, 'F', 'FontSize', 30, 'Color', 'r', 'FontWeight', 'bold');