An independent referenceNo. The Texas Instruments TI-89 Titanium is not allowed on the Digital SAT in 2026 because College Board prohibits CAS calculators, and TI-89-family models are listed as prohibited.
No. The Texas Instruments TI-89 Titanium is not allowed on the Digital SAT in 2026 because College Board prohibits CAS calculators, and TI-89-family models are listed as prohibited.
The TI-89 Titanium is a TI-89-family CAS graphing calculator, and College Board prohibits CAS calculators on the SAT.
College Board's SAT calculator policy allows handheld graphing, scientific, and four-function calculators only when they do not include prohibited features. The TI-89 Titanium is recorded in this guide as a CAS graphing calculator in the TI-89 family with symbolic algebra capability. That is the decisive issue. This verdict does not ban every graphing calculator and does not depend on whether the student intends to use calculus, algebra, programming, or stored notes. It treats the model as prohibited because SAT policy is feature-based and names TI-89-family calculators among examples of CAS devices. Clearing memory, deleting programs, changing folders, or promising not to use symbolic tools does not turn a TI-89 Titanium into a non-CAS calculator. For SAT Math, use Bluebook Desmos or a physical non-CAS calculator instead.
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.”
Do not bring the TI-89 Titanium to the SAT as a primary calculator or backup calculator; the model family itself is the problem.
The Digital SAT includes Desmos in Bluebook, but built-in Desmos does not make a separate prohibited CAS handheld calculator acceptable.
Do not rely on clearing memory, deleting apps, resetting defaults, hiding folders, or changing modes to make the TI-89 Titanium SAT-approved.
If an older article or forum says TI-89 was allowed on SAT, compare it against the current College Board calculator policy before test day.
A calculator being useful for calculus, engineering, statistics, or college coursework does not make it acceptable for the SAT Suite.
If you are borrowing a calculator, inspect the front label, startup screen, catalog menus, hardware version, and manual name before assuming it is non-CAS.
Practice replacement workflows for graphing, table setup, equation solving, regression, matrices, fractions, radians, degrees, and scientific notation before exam week.
Do not assume the SAT answer matches old SAT Subject Test, AP, classroom, college-placement, or teacher-specific calculator rules.
If a search result says TI-89 is allowed, check whether it was written before College Board clarified the non-CAS requirement.
When replacing the calculator, test common SAT tasks such as linear regression, quadratic graph checks, exponential tables, trigonometric ratios, and percent change.
If a school loaner drawer includes both TI-84 and TI-89 models, request the approved non-CAS model by exact name and verify the case before leaving.
Leave prohibited calculators outside the testing room rather than carrying them in the same bag with an approved handheld model.
Recheck the current College Board policy close to your test date because this page is a dated editorial summary of the official rule.
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 tools, matrix tools, and no graphing or CAS feature.
No. This verdict treats the TI-89 Titanium as banned for the Digital SAT because it is a TI-89-family CAS graphing calculator and College Board's current policy allows only non-CAS calculators.
Older SAT calculator lists and forum answers may be outdated. College Board now describes the rule in feature terms and identifies TI-89-family calculators under prohibited CAS examples. Use the current official policy, not an old classroom memory.
No. Clearing memory or deleting files does not remove the built-in CAS nature of the calculator. This verdict is model-based: if the calculator includes CAS functionality and belongs to the TI-89 family, treat it as prohibited.
Use the Desmos calculator embedded in Bluebook or bring a familiar physical non-CAS calculator, such as a TI-84 Plus CE, TI-Nspire CX II, Casio fx-991CW, Casio fx-991EX, or TI-30XS MultiView.
Policies change. If this file is stale or incomplete, send the exact source URL.