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Texas Instruments TI-89 Titanium Scientific Calculator

 
106 reviews
 
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Texas Instruments TI-89 Titanium Scientific Calculator
 
 
 
 
 
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Review Summary

Average Rating: 5.0
 
Based on 106 reviews
21
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725
 
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Review List

Showing 41 - 50 of 106 Reviews

 
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4 out of 4 people found this review helpful.

This is the calculator of the FUTURE

Date of Review:  Dec 4, 2000
Review: I purchased the TI-89 to upgrade from my TI-89 for college. I can't even say enough good things about the TI-89! The TI-89 is a math professor in a tiny plastic container. This calculator does everything you could possibly thinking including...
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  5.0

by: CEOlson
Recommended to buy: Yes

Pros
Great price for what you get - AMAZING...
Cons
May be a little advanced for beginning...
 
7 out of 7 people found this review helpful.

A Computer and Calculator in One

Date of Review:  Dec 10, 2000
Review: Texas Instraments had out done themselves with this handy calculator. The Ti-89 is a handy graphing calculator with tons of extras. This piece of machinery solves linear equations, graphs any equation, has geometric applications, has 512 kb of...
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  5.0

by: dusty6719
Recommended to buy: Yes

Pros
Solves linear equations, you can use it...
Cons
Hefty price tag
 
6 out of 6 people found this review helpful.

Powerful Calculus Tool

Date of Review:  Dec 13, 2000
Review: The TI-89 has many powerful easy to use tools. But is it worth the extra $50 dollars over the TI-83? It all depends on what you need from your calculator. The biggest difference is that the 89 can find integrals and derivatives of specific...
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  5.0

by: TKcars
Recommended to buy: Yes

Pros
display, powerful calculator, calculus...
Cons
no sec, csc, or cot
 
8 out of 8 people found this review helpful.

After trying so many calculators...

Date of Review:  Jan 21, 2001
The Bottom Line: I recommend it especially to those in high school calculus, or anyone in college, because it has any function you will ever need, looks good, and is easy to use.
Review: Hi, my name is Kelly. You may remember me from such reviews as "Bad Deal For Students," reviewing the TI-92. I'm here today to inform you of a discovery that has made my life just about perfect. After buying the TI-89, my grades improved, I met my...
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  5.0

by: KiwiNZ
Recommended to buy: Yes

Pros
Many functions (pretty much the same as...
Cons
Expensive
 
4 out of 5 people found this review helpful.

an extensive look at the ti-89

Date of Review:  Jan 3, 2002
The Bottom Line: Buy it if you need the power and memory
Review: I began with the TI-83+ and became very good at programming and using its functions. When I received a TI-89, I thought I could use it with ease, but was I in for a suprise. The calculator is extremely complex and I wouldn't recommend it as your...
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  4.0

by: runnin_xc
Recommended to buy: Yes

Pros
tons of functions and incredible memory...
Cons
very complex and sometimes difficult to...
 
6 out of 6 people found this review helpful.

Mixed bag on TI 89 Titanium

Date of Review:  Aug 27, 2005
Review: I bought my TI-89 for a physical chemistry class, since my calculus was a bit rusty. It did force me to come to grips with getting the math back in my head, but I thought the learning curve on the TI-89 was very steep. The usability is not...
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  3.0

by: jstanford
Recommended to buy: No

Pros
Many functions. Fast calculations...
Cons
Awkward case. Poor key labels. Arcane...
 
9 out of 9 people found this review helpful.

Do you need this Calculator?

Date of Review:  Oct 16, 2000
Review: I bought this calculator right before starting college for about 150 bucks from Best Buy.

Why did I buy the TI89 over the other TI calculators?
The foremost reason for buying the 89 was that I will be taking 4 years of Calculus for my...
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  5.0

by: heavyd1850
Recommended to buy: Yes

Pros
programming features, split screen,...
Cons
price, can be slow at processing...
 
13 out of 13 people found this review helpful.

the best ever

Date of Review:  Oct 2, 2005
The Bottom Line: This is an excellent calculator for a Rocket Scientist and for a Pre-Algebra student(It's also good for everything in between)
Review: Like the title says this is the best calculator ever. I just bought this 2 weeks ago. While doing my research I had read a lot of reviews saying that the [2nd],[ALPHA], and the diamond button functions were hard to read . Do not believe the people...
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  5.0

by: dillwill92
Recommended to buy: Yes

Pros
fast, 3D graphing, USB and I/O port, 16...
Cons
not very many flash apps,can only...
 
2 out of 2 people found this review helpful.

Worth its weight in gold!

Date of Review:  Feb 11, 2001
The Bottom Line: This is a miraculous calculator for engineering and science fields. Not recommended for beginners and high school students.
Review: As my profile says, I'm a Senior Electrical engineering student, ans believe me, this calculator is worth every single cent!

While it can run games and is fully programmable, it's really the integrated math and calculus functions that make...
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  5.0

by: rfman
Recommended to buy: Yes

Pros
Does symbolic calculations, advanced...
Cons
Can be difficult to figure out at first.
 
10 out of 10 people found this review helpful.

TI-89

Date of Review:  Jun 14, 2002
The Bottom Line: Great tool to have for any college student!
Review: This calculator is a students best friend. It does differentials and integrals for you! Almost every thing you can possible do in calculus can be done on this calculator. It is hard to find some of the operations and functions on there because there...
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  5.0

by: Uber
Recommended to buy: Yes

Pros
Does SO many different things!
Cons
Not easy to operate
 

Showing 41 - 50 of 106 Reviews

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