Texas Instruments TI-85 Advanced Graphing Scientific Calculator

Other products by Texas Instruments

Product Details

Product Manual [9.18mb PDF]

• Shipping Weight: 1 pounds
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B00005QT8A
• Average Customer Review: 3.3 out of 5 stars  See all reviews (7 customer reviews)
• Amazon.com Sales Rank

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  #35 in	Electronics > Office Electronics > Calculators > Graphing
  #45 in	Electronics > Office Electronics > Calculators > Scientific

• Date first available at Amazon.com: September 4, 1973

Product Description

Amazon.com Product Description

Designed with students of higher math in mind, the TI-85 is a scientific calculator that offers a wealth of features and functions that will take you smoothly from pre-algebra all the way through college calculus. Its data I/O port and unit-to-unit link (compatible with all TI-85 and TI-86 models) allow you to easily transfer your final graphs and equations among systems, while the 28K RAM and customizable menu keys provide quick access to necessary programming functions. As you advance through classes, simply reprogram the keys to keep up with your new textbook chapters.

Functions are widely varied, and include the ability to solve for systems-of-equations, polynomial-root, or any variable in an equation. Graphing possibilities include parametric equations, polar equations, and solutions to differential equations. Statistical analysis runs the gamut from linear, logarithmic, exponential and power to quadratic polynomial, cubic polynomial, and quartic polynomial regressions. In addition, data is viewable as strings, pictures, or vectors. Simultaneous separate graph capability and 15 interactive zoom features are also included.

The display is a generous eight lines long and 21 characters wide; this unit is powered by four AAA batteries, with a dependable long-life lithium ion providing memory backup. Texas Instruments includes a one-year warranty covering parts and service.

What's in the Box
TI-85, lithium backup battery, link cable, guidebook with warranty card, and impact-resistant slide case; AAA batteries not included

Customer Reviews

Most Helpful Customer Reviews

7 of 7 people found the following review helpful:

4.0 out of 5 stars TI - 85 Overall, a good graphing calculator., January 18, 2003

By	Jason Patterson (Baton Rouge, LA, United States of America) - See all my reviews (REAL NAME)

With a large number of features and a huge range of functions, the TI-85 is a graphing tool that is well worth its cost. It is fully programmable, using a BASIC-like programming language. Texas Instruments discontinued this line of calculators however, and though they may have had their own reasons, I know of at least two flaws with this particular calculator. The first is that there are some bugs in its programming, such as its inability to convert negative temperatures. The second and much more serious problem is that the screen is not reliable. Roughly half of these calculators have one or more lines or columns of pixels fail after a few years of use. As long as you aren't paying retail price, however, the $$$it might cost for a used TI-85 is more than worth it. Enjoy.

5 of 5 people found the following review helpful:

1.0 out of 5 stars That calculator is not the TI85 graphing calculator from Texas Instrument., October 5, 2006

By	Sammistad (Chicago, IL) - See all my reviews

Don't get me wrong but that calculator shown in the picture is not the TI-85 graphing calculator from Texas Instrument. I have no idea what that thing shown in the picture is.

4 of 4 people found the following review helpful:

5.0 out of 5 stars Excellent Investment.., March 25, 2003

By	"n_muthiah" (Stillwater, OK United States) - See all my reviews

Its an excellent investment for engineers. The Calci helps a lot in mathematical calculations. It has a Huge number of engineering applications. Few applications which I found VERY Useful are

(1) Inverse of a Matrix (2) Solving Quadratic and higher order Equations. (3) Plotting the graph of Algebric Equations which help in finding out the Maxima and Minina..

regards,
A Graduate Student