TI-89 Titanium Graphing Calculator
#5
Texas Instruments

Texas Instruments TI-89 Titanium Graphing Calculator

Rating

Model: 89T/TBL/1L1/D
$95(incl. tax)Amazon price as of 2025-09-24
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Product Overview

The Texas Instruments TI-89 Titanium Graphing Calculator is designed for advanced mathematics and engineering courses. It features a Computer Algebra System (CAS) for symbolic manipulation, 188KB RAM, and 2.7MB flash memory. The calculator supports 3D graphing, data analysis, and comes with preloaded applications. Its USB connectivity allows for easy file sharing and software updates. The large display enhances the viewing of complex equations and graphs, making it a robust tool for problem-solving.

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Product Specifications

Display Size
2.8inches
Display Resolution
100 x 160pixels
Number of Functions
-functions
Graphing Functions
Basic, Parametric, Polar, Sequence, 3-D, Differential-equationtypes
Memory Size
2.7MB
Connectivity
USBtypes
Power Source
4 A batteriestype
Unit Weight
-grams
Programming Languages Supported
-languages
CAS (Computer Algebra System)
boolean

Size & Weight

Weight
10.2 ounces
Hight
0.1 inches
Width
3.3 inches
Depth
7.5 inches

Features

Color Display Function

This model does not have a color display function. Graphs and data are displayed in monochrome, which may limit clarity for some users when analyzing complex information. However, the high-resolution screen partially compensates for this limitation.

High-Resolution Screen Function

This model features a large 100 x 160 pixel display, providing clear and detailed visuals of graphs and equations. This enhances the user experience when dealing with intricate mathematical models or large datasets, making it easier to interpret complex information.

Rechargeable Battery Function

This model does not come with a rechargeable battery function. It uses 4 AAA batteries, which may require frequent replacements for heavy users. Consider the long-term cost of battery replacements when evaluating this calculator.

3D Graphing Function

This model supports 3D graphing, allowing users to visualize three-dimensional mathematical relationships. This is beneficial for students and professionals in advanced math courses or engineering fields, enhancing the understanding of spatial relationships.

Computer Connectivity Function

This model offers computer connectivity via USB, enabling seamless data transfer and software updates. This feature is useful for creating reports, sharing data, and keeping the calculator up-to-date with the latest features, enhancing its overall utility.

CAS (Computer Algebra System) Function

This model includes a Computer Algebra System (CAS), allowing for symbolic calculations and algebraic manipulations. This simplifies complex mathematical operations, making it easier to focus on understanding the concepts and solving equations symbolically.

SHOPSTAFF Rating Score

#5
Ranked #5 out of 42 products in Category
4.5
Overall Rating

The TI-89 Titanium is a powerful graphing calculator suitable for advanced math and engineering. It offers a comprehensive set of functions and ample memory for complex calculations. Its durable design ensures long-lasting performance.

Processing Speed and Memory
4.7
The calculator offers 188 KB RAM and 2.7 MB flash memory, providing sufficient speed and storage for functions, programs, and data. This ensures smooth performance for complex calculations and data analysis, making it suitable for advanced coursework.
Screen Resolution and Display
4.5
The large 100 x 160 pixel display allows for split-screen views, enhancing the viewing of complex equations and graphs. The adjustable LCD is clear under various lighting conditions, reducing eye strain and improving usability for extended problem-solving sessions.
Functionality and Pre-loaded Apps
4.8
With a built-in Computer Algebra System (CAS) and sixteen preloaded applications, including EE*Pro and CellSheet, this calculator is equipped to handle various mathematical tasks. Its comprehensive functionality saves time and effort for advanced coursework.
Ease of Use and User Interface
4.5
The user interface is intuitive and easy to navigate, allowing users to quickly access the functions and features they need. The Program Editor enables users to write custom applications, enhancing the calculator's versatility and adaptability to specific tasks.
Connectivity and Data Transfer
4.6
The calculator offers USB connectivity for file sharing with other calculators and PCs, streamlining the process of backing up data and collaborating with others. This feature enhances the calculator's utility in academic and professional settings.
Battery Life and Power Source
3.7
The calculator uses 4 AAA batteries, providing a decent battery life for reliable performance during extended use. While disposable batteries may require replacements, they offer a convenient power source for both academic and professional settings.
Manufacturer Reliability and Warranty
5.0
Texas Instruments is a reputable manufacturer known for producing high-quality and durable products. The calculator comes with a 1-year warranty, offering peace of mind and protecting your investment against potential malfunctions.
Cost Performance
4.0
Priced at $95.0, the calculator offers exceptional features and performance for its cost. The advanced functionality and durability justify the investment for serious users, making it a valuable tool for advanced coursework and professional applications.

Brand & Manufacturer Details

Texas Instruments
Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits.

Key Highlights

  • Advanced math functions
  • Large memory capacity
  • Computer Algebra System (CAS)
  • 3D Graphing

Considerations

  • Handle with care to avoid screen damage
  • Keep away from extreme temperatures
  • Regularly update software for optimal performance

Recommended For

  • College students in STEM fields
  • Engineers
  • Mathematicians
  • Researchers

Not Recommended For

  • Elementary school students
  • Individuals with basic calculation needs
  • Users requiring only simple graphing functions

Suitable For

  • College-level math courses
  • Engineering projects
  • Scientific research
  • Advanced data analysis

Not Suitable For

  • Basic arithmetic calculations
  • Simple graphing tasks
  • Use in elementary school settings
  • Situations requiring quick, non-complex calculations

Frequently Asked Questions (FAQ)

Q.I'm not sure if this calculator is worth the price. It seems expensive compared to other calculators. Can you provide some insights?
A.The TI-89 Titanium is a powerful tool that can assist in engineering, mathematics, statistics, and business. Staff confirmation indicates it combines almost all the functions needed for calculation, from simple math to calculus. It offers various forms of answers and has programs for finance, engineering, and statistics. While it may seem expensive, staff confirmation suggests the benefits outweigh the cost, citing its durability and comprehensive functions.
Q.I'm considering this calculator for my engineering studies. How well does it handle complex calculations and real-world data analysis?
A.Staff confirmation indicates the TI-89 Titanium is well-suited for engineering studies, providing powerful assistance with calculus, finance, and statistics. It is compatible with CBL 2 system, CBR 2 motion sensor, vernier easylink and vernier easytemp systems to allow collection and analysis of real-world data. It has matrix operations including inverse, determinant, transpose, augment, elementary row operations and reduced row echelon form; matrix elements can be real or complex and numeric or symbolic. Its built-in Computer Algebra System (CAS) allows you to explore and manipulate mathematical expressions in symbolic form, and with compatible sensors, it can measure motion, temperature, light, sound, and force.
Q.I'm debating between this calculator and an HP model. What are the key differences and advantages of the TI-89 Titanium?
A.According to staff confirmation, the TI-89 Titanium has some advantages over comparable HP models, particularly in the behavior of its home screen edit/command line, which retains the last entered problem for easy editing. It also simplifies units to the most practical SI or SAE unit. It comes preloaded with useful applications such as EE*Pro. While HP models may have more memory and a more feature-rich file system, the TI-89 series is designed to fit both student and professional technical users, with high-quality apps.
Q.How durable is this calculator? I need something that can withstand being carried around in a backpack.
A.Staff confirmation mentions that the TI-89 Titanium is durable and can withstand being dropped. The calculator also comes with an attached, hard slide cover that protects the calculator from getting knocked around in your backpack. One staff confirmation says the calculator has been dropped several times with no issues.
Q.Is this calculator suitable for someone who is not already familiar with advanced mathematics?
A.While the TI-89 Titanium is a powerful tool for advanced mathematics, staff confirmation suggests it is also suitable for general use due to its comprehensive functions and ease of use. The intuitive TI BASIC programming language makes it relatively easy to learn, even for those not familiar with Reverse Polish Notation or other complex programming languages. Additionally, the calculator has a numeric solver, a text editor, programming capabilities, tables, a split-screen function, variable management, and the ability to link to other calculators or a computer.

SHOPSTAFF Rating Ranking

#1

Texas Instruments

Nspire CX CAS Graphing Calculator N3CAS/CLM/2L1

$214.46(incl. tax)Amazon price as of 2025-09-29

The TI-Nspire CX CAS is a graphing calculator with a color screen, CAS, and 3D graphing capabilities.

Display Size3.5 inchesDisplay Resolution- pixels
Number of Functions- functionsGraphing Functions3D types
Memory Size- MBConnectivity- types
Power SourceLithium Metal batteries typeUnit Weight- grams
Programming Languages Supported- languagesCAS (Computer Algebra System) boolean
Color Display FunctionHigh-Resolution Screen FunctionRechargeable Battery Function3D Graphing FunctionComputer Connectivity FunctionCAS (Computer Algebra System) Function
4.6Overall Rating
4.5Processing Speed and Memory
4.7Screen Resolution and Display
4.8Functionality and Pre-loaded Apps
4.5Ease of Use and User Interface
4.6Connectivity and Data Transfer
4.7Battery Life and Power Source
5.0Manufacturer Reliability and Warranty
4.0Cost Performance
#2

Texas Instruments

TI-Nspire CX II Color Graphing Calculator

$144.11(incl. tax)Amazon price as of 2025-09-29

The TI-Nspire CX II is a color graphing calculator with enhanced features for engaging students in STEM fields.

Display Size2.83 inchesDisplay Resolution- pixels
Number of Functions- functionsGraphing Functions- types
Memory Size- MBConnectivity- types
Power SourceBattery Powered typeUnit Weight- grams
Programming Languages SupportedPython, TI-Basic languagesCAS (Computer Algebra System)× boolean
Color Display FunctionHigh-Resolution Screen FunctionRechargeable Battery Function3D Graphing FunctionComputer Connectivity FunctionCAS (Computer Algebra System) Function
4.6Overall Rating
4.5Processing Speed and Memory
4.8Screen Resolution and Display
4.7Functionality and Pre-loaded Apps
4.3Ease of Use and User Interface
4.6Connectivity and Data Transfer
4.7Battery Life and Power Source
5.0Manufacturer Reliability and Warranty
4.0Cost Performance
#3

Texas Instruments

TI-Nspire CX II CAS Color Graphing Calculator

$149.99(incl. tax)Amazon price as of 2025-09-29

The TI-Nspire CX II CAS is a color graphing calculator with a rechargeable battery and student software bundle.

Display Size3.5 inchesDisplay Resolution320 x 240 pixels
Number of Functions- functionsGraphing FunctionsAnimated path plot, Dynamic coefficient values, Points by coordinates types
Memory Size- MBConnectivity- types
Power SourceRechargeable battery typeUnit Weight- grams
Programming Languages SupportedTI-Basic languagesCAS (Computer Algebra System) boolean
Color Display FunctionHigh-Resolution Screen FunctionRechargeable Battery Function3D Graphing FunctionComputer Connectivity FunctionCAS (Computer Algebra System) Function
4.5Overall Rating
4.5Processing Speed and Memory
4.7Screen Resolution and Display
4.6Functionality and Pre-loaded Apps
4.4Ease of Use and User Interface
4.0Connectivity and Data Transfer
4.7Battery Life and Power Source
5.0Manufacturer Reliability and Warranty
4.2Cost Performance
#4

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TI-84 Plus CE Silver Graphing Calculator TI84PLSCESILVER

$154.89(incl. tax)Amazon price as of 2025-09-29

Enhanced screen readability with high-resolution backlit display. Lighter and thinner than earlier generations.

Display Size2.8 inchesDisplay Resolution- pixels
Number of Functions- functionsGraphing Functions- types
Memory Size3.0 MBConnectivity- types
Power SourceBattery Powered typeUnit Weight- grams
Programming Languages Supported- languagesCAS (Computer Algebra System)× boolean
Color Display FunctionHigh-Resolution Screen FunctionRechargeable Battery Function3D Graphing FunctionComputer Connectivity FunctionCAS (Computer Algebra System) Function
4.5Overall Rating
4.5Processing Speed and Memory
4.7Screen Resolution and Display
4.3Functionality and Pre-loaded Apps
4.6Ease of Use and User Interface
4.0Connectivity and Data Transfer
4.7Battery Life and Power Source
5.0Manufacturer Reliability and Warranty
4.2Cost Performance
#5

Texas Instruments

TI-89 Titanium Graphing Calculator

Out of StockStatus as of 2025-09-29

The TI-89 Titanium is a graphing calculator with advanced functions, suitable for calculus, algebra, and statistics.

Display Size2.8 inchesDisplay Resolution100 x 160 pixels
Number of Functions- functionsGraphing FunctionsBasic, Parametric, Polar, Sequence, 3-D, Differential-equation types
Memory Size2.7 MBConnectivityUSB types
Power Source4 A batteries typeUnit Weight- grams
Programming Languages Supported- languagesCAS (Computer Algebra System) boolean
Color Display FunctionHigh-Resolution Screen FunctionRechargeable Battery Function3D Graphing FunctionComputer Connectivity FunctionCAS (Computer Algebra System) Function
4.5Overall Rating
4.7Processing Speed and Memory
4.5Screen Resolution and Display
4.8Functionality and Pre-loaded Apps
4.5Ease of Use and User Interface
4.6Connectivity and Data Transfer
3.7Battery Life and Power Source
5.0Manufacturer Reliability and Warranty
4.0Cost Performance