<p>you can do it on the 83, but having the 89 will make many calculations much faster and you are able to focus more on a few tricky questions :)</p>
<p>What is the broomstick 33?</p>
<p>lol, and you can always borrow a clculator form your school if you don't have one.....</p>
<p>What's the Nsolve( for???? on a TI-89</p>