1. Log into a computer with matlab. A math lab, library computer lab and dorm computer labs all have it. You can also buy a student license and get it on your own computer for about $20, I think. Let me knnow asap if you don't have access. 
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2. Look under Programs or Applications for matlab. Open it. 
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3. Download files <a href="lorenz.m">lorenz.m</a>, 
<a href="rhs.m">rhs.m</a> 
and <a href="logistic_map.m">logistic_map.m</a> from the class 
<a href="http://www.math.utah.edu/~borisyuk/5470/homeworks.html">website</a>
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4. In the main Matlab window click File > Open and open one of your downloaded files. Do it for each of them. They will open as tabs in the matlab editor. 
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5. Look through lorenz.m. Find parts where initial conditions and the
length of integration are set up, parameter values (they are in rhs.m), 
where equations are solved, solutions are plotted. 
You will need to manipulate initial conditions, 
parameter values and look at various plots. 
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6. When you are done, hit Run (big green arrow) 
at the top of the Matlab window (Make sure you do it in the lorenz.m tab, not in the rhs.m tab). Multiple figure windows will show up. Look at them to figure out which one is which.
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7. Do the assigned exercises. In each one you need to adjust parameters 
first in rhs.m. Don't forget to save it (when you are done). 
Then do some exploraton by modifying lorenz.m and running it multiple times - change initial conditions and run it again. 
Make observations. Is the solution converging to a fixed point? periodic? looks chaotic? transient chaos? Is it the same for all initial conditions that you tried? 
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<b> Important!</b> If you need to record any results, or save any figures, print them out or email them to yourself. Nothing from your session will save on the school computer once you log out. 
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8. When you are done, make sure you have saved and printed everything you need, exit and log out.