Question about Texas Instruments TI-83 Plus Calculator

2 Answers

Solver not working properly

On the TI 83 plus the solver function was working fine up until recently. Now I put in the problems and get the error "No sign change" and underneath the answer and boundaries it now says "left-rt=(a different number each time I put in a new equation). I tried resetting my calculator and it didn't fix it.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Clearing the memory usually fixes this problem for me. If you hit 2nd and then + it will take you to the memory menu, where you can clear it by hitting 7. I usually hit clear all memory and confirm, and that fixes the problem for an equation or two, three if I'm lucky. For some reason using the solver too much makes it increasingly inaccurate to the point where you can't get an answer at all, but I don't know why.

Posted on Feb 05, 2013

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,037 Answers

Try a simple equation like x^2-1 which should come out with x = 1,-1

no sign change would indicate that the graph of the curve never crosses the x axis, if you graphed the above equation and calculated the zeros, it would come out with -1, 1 which it should, but if you put in x^2+1, the graph would never cross and therefore have no sign change from pos to neg or vice versa, the left-rt are the left and right bounds or the lower and upper bounds which was corrected in later calculators, Please let me know the outcome of graphing both of the above equations and then putting them in the solver. you could also use the quadratic equation to prove the answers if you liked, hope this helps

Posted on Mar 23, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

On the TI83 calculator the equation solver dont workequation solver dont work


Most probable that you are not using the correct syntax.
Press MATH, then scroll down to reach the SOLVER line. Press ENTER. Create the equation, using the ALPHA keyboard to type in letter symbols.
Press ENTER. The screen that opens displays the equation and a list of the variable present in your equation. Each letter (variable) must have a value, except the unknown. If there is a 0 after the = sign on the same line as the unknown, you must clear it so as to leave a blank.
Specify the lower bound and the upper bound to speed up the search.
Once finished press [ALPHA][ENTER] to execute the (SOLVER)

Oct 20, 2011 | Texas Instruments TI-83 Plus Calculator

6 Answers

Equations


You can't simply enter 7x+9=30 into the calculator, there is a way to calculate what the x is but its been a few years since I've done these..

Oct 03, 2008 | Texas Instruments TI-83 Plus Calculator

2 Answers

Im trying to create a program to run the colebrook formula but after i program it and enter the unknown i get error data type and brought back to program editor screen.


The error data type means that the program is expecting a specific type of data ( number, list, matrix, real, complex, string, etc.) while you are feeding it some other type of data. The point in the program where you are taken when the error occurs is where the exception was launched.

A common source of error stems from the use of variables that are global and defined in some other program. You can use the same name inside your program as long as you declare the variable local.
If your program is in fact a function, then all its argument must be passed in the call to the function: You cannot ask a function to read your input.

I will not pretend to know why you get the error, but the few comments I made above may help you debug the program.

By the way, if you are interested a Cobebrook online calculator, here is a link

Apr 26, 2011 | Texas Instruments TI-89 Calculator

2 Answers

How to find the polynomial roots in TI-83 Plus


One way is to use the Polynomial Root Finder and Simultaneous Equation Solver app.

Press the APPS key, then select PlySmlt2 and press ENTER. Press ENTER to get past the opening screen, then select "POLY ROOT FINDER" and press ENTER. Select the order of the polynomial and other settings as desired. Press F5 (the GRAPH key) to go to the next screen. Enter the polynomial coefficients, then press F5 to solve. The next screen will show you the roots (unless you selected real roots and the polynomial doesn't have any real roots).

If you don't have the app installed, you can download it from
http://education.ti.com/educationportal/sites/US/productDetail/us_poly_83_84.html

Jan 20, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

How do I get to the tvm function on a TI-83 plus calculator?


Press the APPS key to bring up the Applications menu. Press 1 to select "Finance..." Press 1 to select "TVM Solver..."

Jun 14, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Trying to use the solver function getting an err: archived msg. What can I do to solve this? Using a TI-84 plus


Some variable in your function is in archive memory. Press 2ND [MEM] 2 to get into the Memory Management menu. Press 1 to select All. Do you see a variable you're using in your function with an asterisk to its left? If so, navigate down to it and press ENTER to turn off the asterisk. Do this for as many variables as necessary, then press 2ND [QUIT] to exit.

Try the Solver again.

Apr 08, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do i access the tvm solver


Hi,
Through the Finance Application. Press [APPS][1:Finance][1:TVM-Solver] [ENTER].

Hope you find it.

Dec 03, 2009 | Texas Instruments TI-83 Plus Calculator

2 Answers

Two times the square of x plus the difference of x squared and eight times x


I'm not sure what calculator you wanted on:Ti 89


fe76536.jpg

The Ti 84/83 you would use the solver in the math key. just have it =0

Sep 24, 2009 | Texas Instruments Calculators

1 Answer

Can you use the ti-83 plus as a finanical calculator. if so what are the keys for pv, pmt fv and interest


Click APPS and then ENTER for Finance and then ENTER again for the TVM Solver. There you can input the PV, PMT, i, etc.

Jun 22, 2009 | Texas Instruments TI-83 Plus Calculator

Not finding what you are looking for?
Texas Instruments TI-83 Plus Calculator Logo

572 people viewed this question

Ask a Question

Usually answered in minutes!

Top Texas Instruments Calculators Experts

kakima

Level 3 Expert

96627 Answers

k24674

Level 3 Expert

7987 Answers

Stevan Milanovic

Level 2 Expert

243 Answers

Are you a Texas Instruments Calculator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...