This page contains two exercises. Make sure you have a look at both of them.

**Exercise 3.1**

Complete **Worked Exercise 3.1** by writing commands for the cos and tan functions. You will notice that your tan graphs will look weird so you may want to introduce a new set of limits for them.

Hint: For your tan plots, you could use the new limits:

x1 = -(pi/2)+0.01:0.01:(pi/2)-0.01

Check your answers with sin_cos_tan_sol.m (within the attached zip file).

Download:

- Sample solution: sin_cos_tan_sol.zip

**Exercise 3.2**

Would you be able to make the graphs look fancier by using titles? Play around with the `title`

and the `suptitle`

commands (refer to the MATLAB documentation, or simply look at the M-file in the attacked zip file to intuitively learn). Feel free to change the code around so that you understand what those commands do.

Download:

- Required file: sin_cos_tan_sol_titles.zip