<p>The Collegeboard policy is pretty vague. I don't think they allow them on the ACT, but can be used on APs.</p>
<p>"Acceptable Calculators
Calculators permitted during testing are:</p>
<p>Graphing calculators
Scientific calculators
Four-function calculators (not recommended)
If you have a calculator with characters that are one inch or higher, or if your calculator has a raised display that might be visible to other test-takers, you will be seated at the discretion of the test supervisor.</p>
<p>You are not required to clear the memory on your calculator.</p>
<p>Unacceptable Calculators
You are not allowed to use any of the following items as a calculator:</p>
<p>Laptop or a portable/handheld computer
Calculator that has QWERTY (typewriter-like) keypad, uses an electrical outlet, makes noise, or has a paper tape
Electronic writing pad or pen-input/stylus-driven device
Pocket organizer
Cell phone calculator "</p>
<p>SAT</a> Calculator Policy</p>
<p>Has anyone here used a TI-89 on the SAT?</p>