Question about Texas Instruments TI-84 Plus Calculator

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I need to do HPR finance problems on my TI-84 calculator and for some reason when I use the finance function my answers are wrong

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6 Suggested Answers

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Posted on Jan 02, 2017

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Flortzweich
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SOURCE: Can you Factor on a TI-84? IF not, does the TI-89?

Well, to answer part of your question, yes... the TI-89 does factor like this. it is inputted like this:

factor(6*x^2+11*x+4,x)

Check the catalog in the TI-84 (which is 2nd-zero) and look under F for factor()

Posted on Jan 19, 2009

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SOURCE: TI-84 Plus Calculator will not turn on, says ram is cleared

Thats because the OS is corrupt. Follow the manual and reload the OS, try the 2.43 OS

Posted on Mar 02, 2009

  • 11 Answers

SOURCE: comma key on TI-84 Plus Siver Edition calculator.

The comma key on the TI 84 SE is above the 7 key, and it is just left of (, right of x squared, and below SIN. thats where the "," key is. If you're asking something else, please clearify. My understanding is that you don't know where the comma key is. 

Posted on Mar 18, 2009

  • 3 Answers

SOURCE: Calculating out npv and irr

Use the "FINANCE" app:

[APPS] [1] [ENTER]

for npv: select "7:NPV"
now you should get "npv(" on your screen.
use: npv(interest rate, cost {cash flows}, {frequencies of cash flows})


for irr: select "8: irr"
"irr(" will come up.
use: irr(interest rate, cost {cash flows}, {frequencies of cash flows})

Posted on Apr 30, 2009

  • 7993 Answers

SOURCE: TI-84 Plus LCD display broken. Is replacement available?

Hello,
Contact ti-cares@ti.com or www.ti.com/calc .
Hope it helps

Posted on Oct 25, 2009

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1 Answer

What is wrong with my calculator? invNorm Error:Domain


DOMAIN ERROR:

- You specified an argument to a function or
instruction outside the valid range. This error is
not returned during graphing. The TI-84 Plus
allows for undefined values on a graph.

- You attempted a logarithmic or power
regression with a LX or an exponential or power
regression with a LY.

- You attempted to compute GPrn( or GInt( with
pmt2 < pmt1.

Mar 16, 2015 | Texas Instruments TI-84 Plus Calculator

2 Answers

TI-84 Calculator Gives Me the Wrong Logarithm Solution


"log(2)8" means "common logarithm of 2 multiplied by 8".

The TI-84 has three different logarithm functions.
log is the common (base-10) logarithm.
ln is the natural (base-e) logarithm.
logBASE lets you take the logarithm to any positive base.

If you want the log base 2 of 8, you want logBASE(2,8). You'll find the logBASE function in the catalog, accessible by pressing 2ND [CATALOG] ). CATALOG is the shifted function of the 0 key, the ) gets you to the Ls in the catalog.

Sep 30, 2012 | Texas Instruments TI-84 Plus Calculator

1 Answer

When I hit dms function the answer comes out wrong the degree minutes = the degree and the seconds = the minutes how do I change it TI-84 Silver


At first, you have to use DEGREE mode and after that you can convert your angles into DMS mode. See captured image below


2_12_2013_8_36_24_am.jpg

Oct 05, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

I need instructions on how to input problems future value, present value, add-on interest and other personal finance problems


You'll find full instructions in the "Calculating Time Value of Money (TVM)" section of the guidebook (page 255 in my copy). If you need the guidebook, you can download one at
http://education.ti.com/downloads/guidebooks/graphing/84p/TI84Plus_guidebook_EN.pdf

Jun 15, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

I am using the finance app on the TI 84 plus and followed an example on how to use it but the answer was different from the example. Do I need to reprogram the calculator? If so, how do I go about it?...


There is nothing to reprogram: The finance application is part of the OS and you cannot modify its working. Most likely you made some small mistake or other entering the terms of the calculation.
There may be some old values in the finance application variables. It might be a good idea to clear the registers before any new calculation.

Sep 20, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

When i press the apps button, all it shows is finance... how do i get the rest of my apps back??


The Finance App is part of the Operating system. You cannot get rid of it. The other Applications can be deleted from Archive Memory.
To restore them:
  1. Download them from education.ti.com
  2. Connect calculator to computer
  3. Run TI Connect.
  4. Drag and Drop an App onto the TI connect Main window
  5. The App should transfer to calculator
  6. After transferring one or two Apps, Press [2nd][MODE] to (QUIT) and let the calculator defragment the memory.
  7. Transfer one or two more Apps.
Here is the link to the latest software page for the TI83/84 Plus software.

Sep 09, 2010 | Texas Instruments TI-84 Plus Calculator

2 Answers

Wrong trig ratio


Your calculator is set in radians. Press mode key. Arrow down to 3rd line. Highlight degree and press enter. Your calculator is now in degrees, not radians. To get out of the mode screen and back to home screen, press 2nd and then mode.

Aug 05, 2009 | Texas Instruments TI-84 Plus Calculator

2 Answers

Calculating out npv and irr


Are you using the finance app?

[APPS] [1] [ENTER]

For NPV, choose "7:npv("
Then use:
npv(interest rate, cost {cash flows}, {frequencies of cash flows})

For IRR, choose "8:irr("
Then use:
irr(interest rate, cost {cash flows}, {frequencies of cash flows})

Jul 25, 2008 | Texas Instruments BA-II Plus Calculator

1 Answer

Calculating out npv and irr


Use the "FINANCE" app:

[APPS] [1] [ENTER]

for npv: select "7:NPV"
now you should get "npv(" on your screen.
use: npv(interest rate, cost {cash flows}, {frequencies of cash flows})


for irr: select "8: irr"
"irr(" will come up.
use: irr(interest rate, cost {cash flows}, {frequencies of cash flows})

May 13, 2008 | Texas Instruments TI-84 Plus Calculator

3 Answers

Derivative


Please help me to find the answer for my problem with TI-84:
If I'd like to work with: nDeriv(3X^3+2x^.5),X,1)
then I press Enter button, the sreen shows Error...

Please help me to get the answer for this problem. Thank you very much!

Apr 10, 2008 | Texas Instruments TI-84 Plus Calculator

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