Texas Instruments TI-89 Titanium CAS Graphing Calculator
Screen size : 7.5 inch
|
Power Source : Battery|
Connectivity options : USB|
Display Type : LCD|
Battery Type : AA|
Memory : 2.7 MB|
Dimensions : 7.5 x 0.9 x 3.3 inches
What we analysed
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28,910 reviews
covering
41 products
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Graphing Calculators
Experiential insights by users
About Texas Instruments TI-89 Titanium CAS Graphing Calculator
Overall Feedback:
85% positive
71% appreciated the battery life, but 29% found it drained too quickly.
I can go a month or two without changing batteries while using it everyday for about 2-3 hours.
A fresh set of four Duracell batteries lasted for 6 months in the device when I used it for about 4 hours a week.
The battery life lasts for about 6 months, which is pretty good for everyday use.
I am now using eveready alkaline batteries for my calculator as the previous ones died after a month of usage. They last more than a year under heavy usage.
85% appreciated the sturdy build
After 4 years, none of the buttons have faded and the screen pixels remain intact, indicating great build quality for my calculator.
This is the best quality electronic device I have ever seen.
I think the build quality of the TI-89 Titanium Graphing Calculator is amazing. It feels very solid, the buttons click just the right amount, the sliding cover is very secure and it can also endure its fair share of drops.
84% found the buttons responsive and easy to use
The buttons are very quiet and responsive.
My keyboard is responsive without any issues like sticking keys, key bounce, or non-responsive keys.
86% liked the various connectivity options
I found the connectivity options of the TI-89 Titanium helpful, especially the ability to plot direction fields using different algorithms and the USB connectivity for installing applications and transferring data. I also appreciated its support for connectivity to older model TI-89s via the old I/O port next to the USB connector.
65% praised the clear display
The display is easy to read with a crisp resolution and color choices for notations.
87% praised the ample memory capacity
The calculator has a large amount of onboard main memory and additional flash memory to handle memory-intensive problems.
I can manage files and link to other calculators using the calculator's feature.
I figured out that the slow speed was due to multiple games/programs being installed that I didn't know of, so I swiped the memory and everything is working just fine.
65% liked the intuitive user interface
The Windows-like interface makes it easy to use.
