An independent referenceExam-by-exam policy for the physical Texas Instruments TI-89 Titanium: where the model is approved, where it is banned, and the official source behind each answer. Covers the SAT & ACT exams, with notes on university, board, and international exams below.
Texas Instruments TI-89 Titanium
Cas Graphing calculator. Programmable: Yes. CAS: Yes.
0 approved verdicts and 2 banned verdicts currently published.
CAS graphing calculator in the TI-89 family with symbolic algebra capability.
The Texas Instruments TI-89 Titanium includes a computer algebra system (CAS) — the calculator category most likely to be restricted. Many university entrance tests, board exams, and competitive exams ban CAS and graphing calculators outright. Rules still vary by institution, and we have not yet verified a specific university or board policy for this model.
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College Board says only non-CAS calculators may be used on the SAT and lists Texas Instruments model numbers beginning with TI-89 among prohibited CAS examples. The guide data classifies TI-89 Titanium as a CAS graphing calculator, so this verdict treats it as banned for SAT Math.
“Only non-CAS calculators may be used.”
ACT prohibits calculators with built-in or downloaded CAS functionality and lists model numbers beginning with TI-89 among prohibited Texas Instruments calculators. The guide data classifies the TI-89 Titanium as a CAS graphing calculator, so this verdict treats it as banned for ACT Math.
“Calculators with built-in or downloaded computer algebra system (CAS) functionality are prohibited.”
Rechargeable color graphing calculator widely used in US high school math courses.
Non-CAS color graphing calculator; distinguished from the CAS variant (TI-Nspire CX CAS) by the absence of symbolic algebra.
ClassWiz scientific calculator with natural textbook display, equation, matrix, vector, statistics, distribution, table, and QR-code support; dual powered, non-programmable, and no graphing or CAS feature.
Color graphing calculator with programming features but no CAS capability.