MATLAB: How to modify the markers of a figure of the decaying function are squares instead of circle and set the line width of the other sinusoid to 2 instead of 4

Question

This is my code:

x = 0:pi/20:4*pi;

plot(x, sin(x))

hold on

plot(x, exp(-0.1*x).*sin(x),'o')

hold off

Answer 1

x = 0:pi/20:4*pi;
plot(x, sin(x),'LineWidth',2)
hold on
plot(x, exp(-0.1*x).*sin(x),'s')
hold off