Example - Adding Annotations

   1.

Create the Lotka-Volterra plot using 0 to 15 years as the time frame and an initial population size of 20 for both predators and prey.

[t,y]=ode23('lotka',[0 15],[20;20])
plot(t,y)

   2.

Add a text annotation.

1. Click the text annotation button in the Plot Editor toolbar.
2. Move the cursor to the location where you want the text to appear and click.
3. Type the following, pressing the Enter or Return key to advance to new lines.

   Many Predators;
Prey Population
Will Decline

4. Click outside of the text annotation area to see the text you just added.

   3.

Add an arrow annotation.

1. Click the arrow annotation button in the Plot Editor toolbar.
2. Move the cursor to the location where you want the end of the arrow to appear.
3. Draw the arrow by dragging the cursor from the end of the arrow to the tip of the arrow.