An independent referenceExam-by-exam policy for the physical Texas Instruments TI-89: where the model is approved, where it is banned, and the official source behind each answer. Covers the SAT exams, with notes on university, board, and international exams below.
Texas Instruments TI-89
Cas Graphing calculator. Programmable: Yes. CAS: Yes.
0 approved verdicts and 1 banned verdict currently published.
CAS graphing calculator in the TI-89 family with symbolic algebra capability; College Board and ACT policies treat TI-89-family CAS models as prohibited.
The Texas Instruments TI-89 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 and lists Texas Instruments model numbers beginning with TI-89 among prohibited CAS examples. The guide data classifies TI-89 as a CAS graphing calculator, so this verdict treats it as banned for SAT Math.
“Only non-CAS calculators may be used.”
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.