Texas Instruments - TI-89 Titanium Graphing Calculator, Pixel Display
TI-89 Titanium Graphing Calculator, Pixel Display
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.



Normal Wear & Tear • Power Surges

Plan Details

See All Plans
Protection Plan Options
Cardholder Offers


Ratings & Reviews

Overall Customer Rating:
98% of customers would recommend this product to a friend (198 out of 202)

Product Features

About 188KB user-available RAM and 2.7MB flash ROM — 3x the flash ROM of the TI-89

16 preloaded graphing calculator software applications including EE*Pro, CellSheet and NoteFolio

Built-in USB port for fast, easy connectivity to PC and other graphing calculators; electronically upgradeable via included USB cable

Amortization: Yes

I/O Port: Yes

Time/Date: Yes

Bond Calculations: No

Confidence Interval Calculating: Yes

Memory: 188KB RAM, 2.7MB ROM

Logical (Boolean) Operations: Yes

Backspace Key: Yes

Global Product Type: Calculators-Graphing

Case: Hard

Metric Conversion: No

Depreciation Calculations: No

Total Recycled Content Percent : 0 pct

Equation Editor: Yes

Display Notation: Graphic

Decimal Function: No

Variable Statistics: One, Two

Interest Rate Conversion: Yes

Variable Regression: No

Base Number Calculations: Yes

Square Root Key: No

Grand Total Key: No

Display Types: LCD

Graphing Functions: 3-D, Differential Equations, Histogram, Parametric, Plot, Zoom

Hyperbolic Functions: Yes

Currency Exchange Function: No

Levels of Parentheses: Unlimited

Time-Value-of-Money: Yes

Complex Number Calculations: Yes

Markup/Down Key: Yes

Trig/Log Functions: Yes

Pre-Consumer Recycled Content Percent : 0 pct

Fraction/Decimal Conversions: No

Fraction Calculations: No

Power Source(s): Battery

Display Characters x Display Lines: 160 x 120 pixels

Date Calculations: No

Higher Mathematical Functions: Calculus, Polynomial Equations

Percent Key(s): No

Simultaneous Equations: Yes

Calculator Type: Graphing

Hypothesis Testing: Yes

Polar-Rectangular Conversion: Yes

Probability (Random Number): No

Percent Add-On/Discount: No

Tax Calculation: No

Matrices: Yes

Loan Calculation: No

+/- Switch Key: No

Post-Consumer Recycled Content Percent : 0 pct

Item Count Function: No

Entry Logic: Algebraic

Double Zero Key: No

Programming Steps: Subroutines, Within Memory Limits

Display Window Resolution: 100 x 160 Pixels

Linear Regression: No

Cost/Sell/Margin: No

Overall Customer Rating

4.7 (202 Reviews)

Product Features Mentioned In Customer Reviews


Looks like there aren't enough negative mentions yet.

Product images, including color, may differ from actual product appearance.