Best Ti 89 2026

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Last Updated - 03.02.2026

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01

CALCUSO

P-TR-CX-II-T-CAS Texas Instruments Calculator

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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The kit includes the TI-Nspire CX II-T CAS, a WYNGS protective case in black for optimal protection and an extended warranty from CALCUSO, which offers additional safety and reliability. Perfect for school and work
The basic package from CALCUSO offers an ideal combination of the powerful TI-Nspire CX II-T CAS and a robust protective case from WYNGS. It is perfect for everyday use at school, study and office and ensures reliable calculations as well as safe protection on the go.
The TI-Nspire CX II-T CAS offers all the features of the CX II-T plus a powerful computer algebra system (CAS) for symbolic calculations. Ideal for algebra, calculus and natural sciences. With Python programming and interactive tools for study & school.
Robust WYNGS protective case: the protective case provides optimal protection for your TI-Nspire CX II-T CAS. It reliably protects against splashes, bumps and scratches - ideal for on the go, school or study and ensures a longer life of your calculator
Extended 5 year warranty: benefit from the exclusive CALCUSO warranty extension for the TI-Nspire CX II-T CAS. At 5 years, you are well protected - for long-lasting reliability in school, study and work

184,95 €
02

Texas Instruments

Texas Instruments TI-Nspire CX II-T CAS 800 Functions Colour Graphing Calculator 3D Black Red

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Works with functional types and in the areas of financial mathematics, statistics and programming. The 90 MB storage space is also usable
With the high-resolution colour display, you can import your own images and overlay them with graphs, dots and other graphics. With touchpad for effortless navigation
The graphic calculator (successor model to the TI NSPCXCASIIT1) with computer software is the ideal companion in STEM lessons from secondary level I. The included software is identical to the handheld
The computer algebra system (CAS) is used to edit algebraic expressions. It solves mathematical tasks with numbers as well as symbolic expressions such as variables, functions, polynomials or matrices
Scope of delivery: The lightweight calculator comes with carrying case, mini USB cable and a PC-Link cable. The built-in battery is rechargeable
Note: For the problem of the display shedding streaks and shutting down, try restarting the calculator. This will help.

164,40 €
Value for Money

03

Texas Instruments

Texas Instruments TI-84 Plus CE-T Python Edition Graphical Calculator (Colour Display) Black

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10% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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The TI-84 Plus CE-T Python Edition Graphing Calculator is extremely light and handy. This new model allows programming in Python. With 3 MB flash ROM memory for data archiving and storage of apps
Calculator with ideal readability thanks to high-resolution, backlit display. Screen size: 320 x 240 pixels (2.8" diagonal) in 140 DPI resolution, colour depth 16 bit. Built-in TI battery (the TI battery can last up to a week after charging.)
Available matrix operations: Reverse, Determinant, Transpose, Matrix Extension, Stair Normal Shape, and Elementary Line Transformations. Convert matrix to list (and vice versa) List-based statistical analysis for one or two variables, including logistics, sine, median-median, linear, logarithm, exponential, potency, square, cubic and quaternal regression models
Add images as chart background, change function graphs in 15 colors, format and color of graph axes and grids. 3 definitions of statistical diagrams for scatter charts, line charts, histograms, boxplots and modified boxplots as well as normal distribution charts
Add custom apps to your TI-84 Plus CE-T Python Edition. This allows you to extend the functionality of your computer. These specific math and science functions deepen your understanding

134,50 € 149,81 €(10% Off off)
04

Texas Instruments

Texas Instruments TI-Nspire CX II-T CAS 800 Functions Colour Graphing Calculator 3D Black Red

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Works with functional types and in the areas of financial mathematics, statistics and programming. The 90 MB storage space is also usable
With the high-resolution colour display, you can import your own images and overlay them with graphs, dots and other graphics. With touchpad for effortless navigation
The graphic calculator (successor model to the TI NSPCXCASIIT1) with computer software is the ideal companion in STEM lessons from secondary level I. The included software is identical to the handheld
The computer algebra system (CAS) is used to edit algebraic expressions. It solves mathematical tasks with numbers as well as symbolic expressions such as variables, functions, polynomials or matrices
Scope of delivery: The lightweight calculator comes with carrying case, mini USB cable and a PC-Link cable. The built-in battery is rechargeable
Note: For the problem of the display shedding streaks and shutting down, try restarting the calculator. This will help.

145,83 €
05

Texas Instruments

TI-84 Plus CE-T Python Edition with Protective Case from WYNGS in Black - Basic Set

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The TI 84 Plus CE-T has a high storage capacity for even more applications - 3 MB ROM, 154 KB RAM
Texas Instruments - TI-84 Plus CE-T functionality with a high-resolution colour display
TI-84 Plus CE-T Protective Case
TI-84 Plus CE T with integrated battery
MathPrint mode of the TI 84 Plus CE T: representations as in the mathematics book, e.g. B. Display of fractions in tables and matrices - also in colour

147,99 €
06

Texas Instruments

Texas TI-30X Prio MathPrint Scientific School Calculator (IQB, Solar/Battery) Grey

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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The calculator complies with the guidelines of the countries applicable from the exam year 2030 for the use of digital aids in the Abitur examination in the subject of mathematics
Texas Instruments Scientific school calculator TI-30X Prio MathPrint
Test safety thanks to operating system display and automatic reset after targeted power off
High-resolution display guarantees better readability and allows further functions, e.g. the display of two functions in the value table
All exam-relevant functions from the areas of arithmetic, algebra, trigonometry and stochastics

30,99 €
07

Bicmice

USB Charging Cable Compatible with Ti-84 Plus CE, Ti-84 Plus/C Silver Edition, Ti-Nspire CX/CAS, Ti-89 Titanium, Ti-Nspire CX II/CAS Graphic Calculator USB A to Mini-B USB Cable for Texas Instruments

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Specifications: 1 m / 3.3 ft standard A USB 2.0 to Mini-B USB 5pin cable. Please confirm the shape of the calculator's USB port is exactly the same as the USB cable before purchasing.
PROFESSIONAL SERVICE Our commitment to excellence does not end at the point of purchase. We offer comprehensive product support, customer service and 24H customer service. Customer satisfaction is our top priority, and our customer service team is at the heart of this mission. We pride ourselves on providing personalized, friendly and professional support that exceeds your expectations.
MORE STABLE DATA TRANSFER This USB cable serves two purposes: transfer data and facilitate charging. It allows seamless transmission of information between devices. This feature allows users to sync files, update software and efficiently back up important data. In addition, the data cable is equipped with the required power conductivity to supply electrical current to the devices and thus allow charging. By integrating data transfer and charging capabilities into a single cable, it provides a convenient and efficient solution for maintaining device connectivity and performance.
Improved durability: with a construction of 11*0.15+10*0.10 high-quality copper cores, this power cable line is designed to withstand 180 degree bends over 10,000+ times, as well as plugging and unplugging over 10,000+ times, and can carry up to 44lbs (20kg) weight. It is durable and sturdy, making it ideal for frequent use.
DESIGNED FOR TEXAS INSTRUMENTS Specifically designed for Texas Instruments Graphing Calculators, specialized in solving charging and data transfer problems for the following models: TI-84 Plus Graphing Calculator, TI 84 Plus C Silver Edition, TI-84 Plus CE, TI-Nspire CX CAS, TI-Nspire CX II CAS, Ti-89 Titan.

4,60 €
08

RIYADAone

RIYADAone Hard Shell Protective Case Suitable for Texas Instruments TI-84 Plus CE/TI Nspire CX II FC/TI-84 Plus/TI-82/TI-Nspire CX II/TI-89 Titanium Graphical Calculator (Black)

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13% Off
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Tip: We only sell protective case. Excludes Texas Instruments TI 84 Plus CE Graphical Calculator and Texas Instruments TI 84 Plus CE Graphical Calculator Accessories). The Texas Instruments TI 84 Plus CE Graphical Calculator Hard Pocket Lightweight and Portable - Fits Easily in Your School Bag or Briefcases. No more worrying about your Texas Instruments TI 84 Plus CE graphics calculator calculator in the backpack scratched by the key
Portability The Texas Instruments graphical calculator hard pocket external has a hand strap and double zipper. Texas Instruments graphical calculator hard pocket can be held in your hand and does not feel tired, make your Texas Instruments TI 84 Plus CE graphical calculator accessible at any time. Two-way zipper supports quick one-handed access for Texas Instruments TI 84 Plus CE Graphical Calculator
Hard shell material: Texas instruments graphical calculator hard pocket external is made of hard nylon. Nylon material has strong friction resistance and can withstand frequent use and friction, making it suitable for long-term wear; good waterproof performance, can protect Texas Instruments TI-84 Plus graphic calculator from rain or liquid splashes; the surface is also smooth and stains can be easily wiped off with a damp cloth
Compatibility: Texas Instruments Graphical Calculator Hard Pocket and Texas Instruments TI-Nspire CX II CAS, Texas Instruments TI-84 Plus CE, Texas Instruments TI-Nspire CX II FC, Texas Instruments TI-84 Plus, Texas Instruments TI-82, Texas Instruments TI-Nspire CX II, Texas Instruments TI-89 Titan, Texas Instruments TI-83 GrafPlus CalCalCalCalCalCalCalbel. Texas Instruments Graphic Calculator Hard Pocket and there are also multiple colors for you to choose from
Clever design: the outer size of the hard shell is 20.5 x 9.5 x 5.5 cm (length x width x height). The graphic calculator hard pocket internal has an elastic band and a mesh pocket. The elastic band keeps your Texas Instruments TI-84 Plus scientific calculator securely in place and prevents it from falling off when opened. The top is equipped with a zip mesh bag with zip, making it the ideal choice for batteries and chargers

13,99 € 15,99 €(13% Off off)
09

Panlouting

Panlouting USB Charger 100 cm Charging Cable Data Cable Compatible with Texas Instruments TI-84 Plus CE Graphing Calculator, TI 89, TI-Nspire CX/CX CAS

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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REPLACEMENT CABLE This is a replacement USB2.0 charger / data cable specifically designed for the Texas Instruments TI-84 Plus CE Graphing Calculator ensuring a reliable charging and data transfer solution.
Functionality: It serves as both a power charger and a data sync cable, allowing you to charge TI 84 Plus CE, TI 84 Plus C Silver Edition and other compatible graphics calculators, as well as transfer data between the computer and a computer.
COMPATIBILITY This charger is compatible with a range of Texas Instruments Graphing Calculators including TI-84 Plus CE, TI-84 Plus, TI84 Plus CE Color, TI 84 Plus C Silver Edition and TI-Nspire CX II, TI-Nspire CX, TI Nspire CX CAS and TI 89 Titanium.
Box contents: you will receive a 100 cm long charging cable, which is suitable for everyday use, whether at home or in the classroom. With this USB charging cable, you can always charge and keep your computer ready to use.

3,99 €
10

PChero

PChero Replacement USB Data Charging Cable for Texas Instruments TI-84 Plus CE, TI 89, TI Nspire CX Graphing Calculator

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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WIDE COMPATIBILITY Compatible with Texas Instruments TI-84 Plus, TI-84 Plus CE, TI-84 Plus C Silver Edition, TI 89 Titanium and TI Nspire CX / CX CAS Graphing Calculators.
Practical for study: lengths at 3.28 ft/1 m. This USB 2.0 to Mini B Type A adapter cable can be easily charged via the USB port of the laptop/PC, power bank, charger and car charger.
HIGH PERFORMANCE CABLE: High quality 24AWG copper inner core with sealed Stury plastic, supports high speed USB 2.0 transfer rate up to 480Mbps.
2 in 1 Function: Four-core data cable design for charging functions and data transfer. Perfect for Texas Instruments TI-84 Plus CE Graphing Calculator.
* IMPORTANT *: OEM parts. Please confirm the specifications and plug size before purchasing! If you can't be sure, please feel free to contact us.

6,99 €