Updated 15 May 2026Independent calculator policy referenceMethodology · Corrections
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§ Calculator file · ti-89-titanium

Texas Instruments TI-89 Titanium Exam Calculator Rules

Exam-by-exam policy verdicts for the physical Texas Instruments TI-89 Titanium. Use this page to see where the model is approved, where it is banned, and which official policy source controls each answer.

Type Cas GraphingPower BatteryCAS YesVerdicts 2
Model profile

The exact printed model name matters more than the brand family.

i. Identity

Texas Instruments TI-89 Titanium

ii. Features

Cas Graphing calculator. Programmable: Yes. CAS: Yes.

iii. Coverage

0 approved verdicts and 2 banned verdicts currently published.

CAS graphing calculator in the TI-89 family with symbolic algebra capability.

Part the Second · Exam matrix

Where this calculator stands.

2 indexed verdicts

Part the Third · Official sources

Policy sources used for this model.

Official source · 01SAT Calculator Policy

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.

College BoardAccessed 2026·05·20
Official source · 02ACT Calculator Policy

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.

ACT Inc.Accessed 2026·05·20

Part the Fourth · Search aliases

Common ways people write this model.

ti 89 titaniumti89 titaniumti-89ti 89

Part the Fifth · Safer comparisons

Related calculator files.