Question about Texas Instruments TI-85 Calculator

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There is no note program. You can hit [2nd] {STRNG} [F1] (type text with A-LOCK) [F1] [STO->] (type name with A-LOCK) [ENTER]
To view:
[2nd] {RCL} (type name with A-LOCK)
[2nd] {CATALOG] [ALPHA] <P> (hit down 5 times) [ENTER] (type name) [ENTER]

Turn off caps lock next time.

Posted on Nov 25, 2008

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If I enter the following equation: 1/9+1-1-1/9 my calculator displays -1E-14 but the answer is 0. Please, explain

This is because the TI-85, like any other calculator, is a finite device and 1/9 cannot be represented exactly in decimal notation.

For this discussion I'm going to use five digits instead of fouteen so it's easier to see.

1/9 = .11111

+1 = 1.1111 (note one digit falls off the right end)

-1 = .1111 (the missing digit doesn't come back)

-1/9 = -.00001

Apr 09, 2010 | Texas Instruments TI-85 Calculator

1 Answer

How do you do fractions?

here it is, in 3 easy steps (you will have to modify, because I am using a TI-83+, and I don't have a TI-85 to look at.):

1.) Press the [MATH] key
2.) "Hit" the [ENTER] key
3.) Repeat step two.

May 15, 2009 | Texas Instruments TI-85 Calculator

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[Stat] - Data numbers (frequency) < 1 (not integer) on TI 85 Calc

Frequencies are always integers. They indicate how many times that particular data value came up. The data values may be non-integers.

As an example, let's say you're measuring the weights of widgets. You may have 3 widgets weighing 1.1 kg, 5 widgets weighing 1.2 kg, and 2 widgets weighing 1.3 kg.

Note that the data are non-integers (1.1, 1.2, 1.3) but the frequencies are integers (3, 5, 2).

Apr 01, 2009 | Texas Instruments TI-85 Calculator

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I need to add variables on my calculator

To save enter the number you want to save then press [STO] and the variable you want to save to.
And to use the variable you need to recall it by [RCL] button and then the variable you want to recall.
Rate me, thanks.

Dec 03, 2008 | Texas Instruments TI-34II Explorer Plus...

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kinda. The TI-85 programs differently, lacks a table feature, is not upgradable, has redefinable keys, has a larger screen, is smaller, energy efficient, TI-86 semi-compatible, and is older.
The TI-84+ has archive memory, flash-upgradable, FSTN (clearer) screen, 16*8 screen, USB On-The-Go compliant, almost a centimeter longer, assembly language support, and a tad bit faster.

TI-82: $89
TI-83 Plus: $79-99
Free TI-85: $0
TI-84 plus: $119.99
TI-84+SE: $129-139
TI-89 Titanium: $149

Sep 06, 2008 | Texas Instruments TI-85 Calculator

4 Answers

TI-85 manual

I have the original TI-85 Graphics Calculator Guidebook (quite thick), but I no longer own the calculator. You are welcome to have it, since I was just about to throw it away. If you want it, please e-mail me at: within the next week, as I'd like to get it off my desk. Thanks! -- Sandy

Aug 13, 2008 | Texas Instruments TI-85 Calculator

3 Answers


It cant make a table. Sorry!

Feb 02, 2008 | Texas Instruments TI-85 Calculator

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