another crazy plot layout with zoomed portions and arrows

Hi, so I'm writing some lecture notes and want to show how to do this

For our purposes let's just suppose 'f(x) = exp(-x)'

Answer 1

[Les Beckham]

Hopefully you can adapt this approach to your needs.

x = linspace(0, 10, 1000);
y = exp(-x);
plot(x, y)
grid on
ax = axes('Position', [0.3 0.6 0.1 0.2], 'Units', 'Normalized', 'Box', 'on', 'XGrid', 'on', 'YGrid', 'on');
idx = (x >= 1) & (x <= 2);
line(ax, x(idx), y(idx))
xlim([1 2])
% arrow ending coordinates were determined by trial and error since they are normalized
% to the entire figure rather than the axes
annotation('arrow', [0.3 0.25], [0.6 0.3])