TI-89 Titanium Exam Policy Checker

Check if the TI-89 Titanium is Allowed on Your Exam

Select a standardized test from the list below to instantly see the official calculator policy regarding the Texas Instruments TI-89 Titanium.

Please Select an Exam

Choose an exam from the dropdown list to see the policy for the TI-89 Titanium.

What Does “Can You Use the TI-89 Titanium Calculator?” Mean?

The question of whether you can use the TI-89 Titanium calculator is a critical one for students preparing for standardized tests and university exams. The answer isn’t a simple yes or no; it depends entirely on the specific exam’s rules. The core of this issue lies in the calculator’s most powerful feature: the Computer Algebra System (CAS). This system allows the calculator to perform symbolic algebra, such as solving equations with variables and simplifying complex expressions, which many testing authorities consider an unfair advantage.

Because of its CAS functionality, the TI-89 Titanium is frequently mentioned by name in exam guidelines. Some tests, like the AP® Calculus exam, permit it, while others, like the ACT®, explicitly ban it. Understanding your specific exam’s policy is not just a recommendation—it’s essential for a smooth and valid testing experience.

The TI-89 Titanium’s “Formula”: The Computer Algebra System (CAS)

The “formula” that makes the TI-89 Titanium so powerful and controversial is its built-in Computer Algebra System (CAS). Unlike a standard graphing calculator that works with numbers, a CAS-enabled calculator can understand and manipulate algebraic expressions containing variables. Think of it as having a symbolic math engine in your hand.

Key CAS Capabilities of the TI-89 Titanium

Variable / Feature	Meaning	Unit	Typical Use Case
Symbolic Differentiation	Finds the derivative of a function in terms of variables (e.g., finds f'(x) from f(x)).	Formula/Expression	Calculus, Physics
Symbolic Integration	Finds the indefinite integral (anti-derivative) of a function.	Formula/Expression	Calculus, Engineering
Solve() Command	Solves algebraic equations for a specific variable.	Variable Value	Algebra, Chemistry
Factor() Command	Factors complex polynomials into simpler terms.	Factored Expression	Advanced Algebra
3D Graphing	Visualizes functions with two independent variables (z = f(x,y)).	Graph	Multivariable Calculus

Practical Examples: Is the TI-89 Titanium Allowed?

Example 1: The ACT® Exam

• Input: Test = ACT®
• Unit/Context: National college admissions test.
• Result: No. The ACT explicitly prohibits all calculators with a built-in Computer Algebra System (CAS), and the TI-89 Titanium is specifically listed as a banned device. Attempting to use it will result in dismissal.

Example 2: The AP® Calculus BC Exam

• Input: Test = AP® Calculus BC
• Unit/Context: College-level advanced placement exam.
• Result: Yes. The College Board permits graphing calculators, including those with CAS like the TI-89 Titanium, for the AP® Calculus, Physics, Chemistry, and Statistics exams. Its features are highly beneficial for these subjects.

Example 3: The SAT® Exam (New Policy)

• Input: Test = SAT®
• Unit/Context: National college admissions test.
• Result: No (as of August 2025). The College Board has updated its policy to ban calculators with CAS functionality, including the TI-89 Titanium, for all SAT Suite assessments starting in 2025.

How to Use This TI-89 Titanium Policy Calculator

Using our tool is straightforward and provides instant clarity on whether you can use the TI-89 Titanium calculator. Follow these simple steps:

1. Select Your Exam: Click on the dropdown menu labeled “Select Your Exam or Test.”
2. Choose the Test: From the list, pick the specific standardized test you are preparing for (e.g., SAT®, ACT®, AP® Physics).
3. Review the Result: The result card will immediately update to show you the policy. It will display a clear “Yes,” “No,” or “Conditional” status.
4. Read the Explanation: Below the status, a detailed explanation provides the reasoning behind the policy, often citing the specific rules from the testing authority. This helps you understand why the TI-89 Titanium is or is not allowed.

Key Factors That Affect TI-89 Calculator Policies

Testing organizations consider several factors when deciding whether to allow a powerful calculator like the TI-89 Titanium. Understanding these can help you anticipate the rules for any given test.

• Computer Algebra System (CAS): This is the number one factor. The ability to perform symbolic algebra is seen as a significant advantage that can bypass the need to demonstrate certain skills.
• QWERTY Keyboard: Calculators with a typewriter-style keyboard (like the older TI-92, a predecessor to the TI-89) are universally banned as they are considered communication devices.
• Wireless Communication: Any device with Wi-Fi, Bluetooth, or cellular capabilities is strictly forbidden to prevent cheating.
• Power Cords and Electrical Access: Calculators needing an external power source are not allowed.
• Test ‘Press-to-Test’ or ‘Exam Mode’: Some organizations, like the IB® Programme, allow certain CAS calculators if they can be put into a special exam mode that temporarily disables saved data and specific functions.
• Fairness and Equity: A major reason for recent policy changes, like the SAT’s ban on CAS, is to level the playing field. By providing a standard digital calculator (Desmos) for everyone, they ensure no student has an advantage based on the cost or power of their personal device.

Frequently Asked Questions (FAQ)

Why is the TI-89 Titanium banned on the ACT but allowed on AP Calculus?

The ACT is designed to test fundamental math skills that all problems can be solved without a calculator. Banning CAS ensures students show their algebraic manipulation skills. AP Calculus, however, tests higher-level concepts where a calculator is a tool for complex computations, so a powerful device like the TI-89 is permitted.

What is a Computer Algebra System (CAS)?

A CAS is a software that allows a calculator to manipulate mathematical expressions symbolically, not just numerically. For example, it can solve ‘2x + a = b’ for ‘x’ to get ‘x = (b-a)/2’, whereas a non-CAS calculator can only solve an equation like ‘2x + 5 = 11’.

Is the TI-89 the same as the TI-84?

No. The TI-84 Plus is a graphing calculator but does not have a CAS. It is widely permitted on almost all exams, including the ACT, making it a safer and more versatile choice for high school students.

My professor allows the TI-89 in class. Can I use it on the final exam?

Always check the specific rules for the exam itself. While a professor may encourage using a TI-89 for learning and homework, the official, proctored final exam might have different, stricter rules set by the department.

Will the proctor clear my calculator’s memory?

Policies vary. Some exams require you to clear your memory, while others do not explicitly state it but prohibit using stored notes. To be safe, you should not rely on stored programs or notes that contain course-specific information.

Is the IB® exam policy for the TI-89 Titanium the same everywhere?

No. The IB explicitly prohibits the TI-89 Titanium under any circumstances for their exams. They allow some other CAS calculators only if they are put into a specific “Press-to-Test” mode.

Where can I find the official calculator policy for my exam?

Always go to the official source. Visit the website of the test provider (e.g., College Board for SAT/AP, ACT Inc. for the ACT) to find the most current and detailed calculator policy. Our calculator tool is based on these official sources.

With the SAT banning CAS calculators, what should I use instead?

You can use the built-in Desmos calculator provided in the digital test application, or bring an approved non-CAS graphing calculator like the TI-84 Plus family. It’s wise to become familiar with Desmos as it is a powerful and fully integrated tool.