Question about Texas Instruments TI-89 Calculator

Before it works fine, when I try to factor, expand, find d but now it give me only numbers. I'm guessing I probably messed up on some settings and I try going through the mode menu changing everything and nothing worked.

Before

d/dx( 3x^2+2x,X) = 6x+2

Now

Same thing = 62

Factoring gives me something similar.

Thanks in advance.

Ad

Oh yeah, you must've archived x, that is, you put a number onto the x variable so that the calculator calculates the answer for you, and THEN AUTOMATICALLY calculates the answer when x is in terms of that number. I am guessing you accidentally did 10[sto] x at one point. You can simply unarchived the x number and everything will be dandy!

Posted on Jul 23, 2008

Ad

Hi there,

Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

The polynomial cannot be factored in the set of Real numbers: The roots of the polynomial equation are complex.

You should use the command**cFactor(** found under F2:Algebra> A:Complex>2:cFactor(

However, you should set the Mode Complex>Rectangular, and the EXACT/APPROXIMATE mode to Exact, otherwise your roots will be in decimal representation.

You should use the command

However, you should set the Mode Complex>Rectangular, and the EXACT/APPROXIMATE mode to Exact, otherwise your roots will be in decimal representation.

Jan 01, 2014 | Texas Instruments TI-89 Calculator

Simple. The calculator interpreted what you entered as much as it could. However when it got to the 2mn part, it recognized the factor 2 and carried out the multiplication of 3 and 2 to give 6, but you never defined for it what mn was. To make sure it understands, insert an explicit multiplication sign between m and n, otherwise it considers the grouping as some new variable. Implicit multiplication cases are easily recognized when they involve a number and a variable, but not when two letters follow one another.

Note: I believe you are not using the right command. Yes, it gives the result here, but the command you should be using is factor( rather than expand(. expand( will open up parentheses and lengthen the expressions. Just thought you might want to know.

Note: I believe you are not using the right command. Yes, it gives the result here, but the command you should be using is factor( rather than expand(. expand( will open up parentheses and lengthen the expressions. Just thought you might want to know.

Feb 21, 2011 | Texas Instruments TI-Nspire Graphic...

I am somewhat puzzled at your affirmation concerning factoring and expanding algebraic expressions. The TINspire does not do symbolic algebra, only the TI Nspire CAS does.

If you have the TINspire CAS, (version 2.x) you can

If you have the TINspire CAS, (version 2.x) you can

- press the HOME button, then select A:Calculate.
- In one of the pages, press MENU.
- Select [3:Algebra]
- Use Down Arrow or enter the number 2:Factor, or 3:expand
- In the command line, expand( , complete the command by entering the expression, close the right parenthesis and press [ENTER].
- The calculator should give you the expanded result.

Feb 08, 2011 | Texas Instruments TI-Nspire Graphic...

Using solve and factor requires correct mode and proper equation set up. Ref to manual might help.

Jul 20, 2009 | Texas Instruments TI-89 Calculator

use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.

Nov 24, 2008 | Hitachi 53SWX12B 53" Rear Projection...

try a CDROM cleaning disk.

Jul 28, 2008 | Toshiba Satellite A105 Notebook

try going to var link and deleting any variables like x and whatever you're trying to factor as they may be stored as lists and thus come out factored like that

Apr 25, 2008 | Texas Instruments TI-89 Calculator

WHAT IS THE KEY OR KEYS TO GET THE INVERSE LOG FUNCTION?

Apr 02, 2008 | Texas Instruments TI-89 Calculator

There must be something that has been introduced to your area that is causing distortion in your WiFi signal. 802.11 or WiFi is very susceptible to noise or signal distortion and can come from many things from interfering objects to other wireless signals such as Wireless phones. There are also many other things that can cause signal distortion I would look to see if you have added anything new around the time the unit lost signal. If your unit is working properly when you are closer to the router than this has to be the problem. Range is a big iffy factor when messing with WiFi.

Feb 26, 2008 | Linksys Wireless-G Range Expander (WRE54G)

I think what you want to do is not to factor but to expand, which is the option right under factor [F2, 3].
expand((x-5)^2) = x^2-10x+25

Jul 13, 2007 | Texas Instruments TI-89 Calculator

93 people viewed this question

Usually answered in minutes!

×