Graphing Calculator Help - Recent questions and answers

how to get games on the ti-83 plus

Mon, 09 Mar 2026 14:45:16 +0000

Answered: TI-84 Plus gives me all answers in scientific notation?

Thu, 15 Jan 2026 13:05:27 +0000

This is a really common (and frustrating) TI-84 issue, especially during timed work, so you’re not alone. The calculator isn’t actually doing anything wrong — it’s just the display mode that’s causing the annoyance. Since your mode is set to ENG, the calculator will always show results in engineering notation for larger numbers (like 57.85×10³ instead of 57,850). To fix this and get normal numbers instantly: Quick fix: Press MODE Change ENG to NORMAL Keep FLOAT selected Press ENTER, then 2nd → MODE (QUIT) After this, 65 × 890 will display 57850 directly, no scientific notation, which is much faster for writing answers in exams. ENG mode is mainly useful for engineering classes, not everyday arithmetic, so NORMAL is the best option for timed assignments. If you want a clear step-by-step guide with screenshots and other TI-84 display tips, this page explains it really well: https://ti84calculator.us/ That should save you a lot of time (and irritation) during calculations

how do I use the polynomial long division program

Thu, 18 Dec 2025 01:12:41 +0000

How to upload Apps to my calculator?

Sat, 15 Nov 2025 21:12:01 +0000

how do i get the program onto my calcuator, i have the cord

Fri, 07 Nov 2025 02:51:33 +0000

how do I use your Trapezoidal rule program on my TI-84 plus?

Wed, 29 Oct 2025 01:25:02 +0000

I downloaded your trapezoidal program onto my calculator but I'm not sure what to input.

Answered: Is there a ti89 tamagotchi?

Mon, 06 Oct 2025 14:16:45 +0000

We need a TI-89 tamagochi

Answered: how to input the code into the calculator

Fri, 03 Oct 2025 20:07:06 +0000

There are many ways to input code into the calculator. Which one you use depends on the type of code you plan to use. The two major types of code are "TI Basic" and "Assembler" (MC68000 machine code). You can find information on TI Basic in the TI-89 manual. Assembler is a bit more involved.

One good place to start is at: https://ticalc.org/basics/calculators/ti-89-ti.html

I found my answer

Sat, 16 Aug 2025 23:14:07 +0000

Answered: My TI-84 Plus calculator won't charge, it flashes OS error message

Mon, 28 Jul 2025 16:53:19 +0000

You didn't say what model of TI-84 you are using. The older TI-84 and TI-84 Plus is NOT rechargeable via the cable. The batteries supplied with the calculator are standard 1.5 volt AAA batteries. You can use rechargeable AAA batteries in the TI-84, but you'll need to take them out and recharge them in a compatible charger when they start to run down.

The newer TI-84 Plus CE is rechargeable via the supplied cable (USB-A to USB mini-B). If this is what you have, then it would help if you told us what error message you are getting from the OS.

Answered: how do i not reset the ram on a ti 84 plus when i switch the batteries?

Thu, 22 May 2025 17:39:25 +0000

It is possible to move your RAM memory to the ARCHIVE. You would do this by going to 2nd MEM, About, ALL. Press enter on all the programs you do not want deleted and a star should pop up next to them. This means all of them are archived and you can take out the batteries without risk.

how do i get a unit circle on my ti-84 plus CE

Thu, 13 Mar 2025 16:32:39 +0000

Answered: what is the code to getting tetris on the calculator

Sun, 23 Feb 2025 22:08:30 +0000

I haven't tried it, but you can check this link.

See www.ticalc.org for more information on putting games on your TI-83. In particular, this is supposed to be a good one.

https://www.ticalc.org/pub/83plus/basic/games/puzzle/blocks/tetrisx83plus.zip

Answered: TI-84 Plus CE Python only gives me answers in scientific notation

Wed, 12 Feb 2025 23:11:45 +0000

You are correct in that your mode should be one of "Normal", "Scientific" or "Engineering". Both Engineering and Scientific display answers with an exponent. According to the TI-84 manual, "Normal" mode uses up to 10 digits in the answer with the decimal point somewhere in the middle. However, there is this note:

Note: If you select Normal notation, but the answer cannot display in 10 digits (or the absolute value is less than .001), the TI-84 expresses the answer in scientific notation.

You will notice that the input "2574/2598960" gives the result "9.903961585E-4".

But "2574/259896" gives the result ".0099039616", which is what you expect.

The simple answer is to write the answer down and move the decimal point 4 digits to the left and leave off the exponent.

TI-84 Mode in the original TI-Nspire, Storage Question

Tue, 11 Feb 2025 07:50:01 +0000

Does the TI-84 Mode in the original TI-Nspire use the full storage capacity of the Nspire, or is it limited to the 84's actual storage limit?

Answered: (3x-1)^2 (x+6)^2

Mon, 20 Jan 2025 02:46:40 +0000

I assume you are trying to expand this into a 4th order polynomial...
First, multilply (3x-1) by (3x-1) to get (9x^2-6x+1)
Then, multiply (x+6) by (x+6) to get (x^2+12x+36).

Now, multiply (9x^2-6x+1) by (x^2+12x+36) to get the answer.

Answered: i cant put ion on my ti 84 python calculator

Sat, 18 Jan 2025 22:46:17 +0000

I've never tried "ion", but this might help:
https://www.reddit.com/r/TI_Calculators/comments/17ivisj/is_it_possible_to_get_ion_on_ti_84/?rdt=51612

Answered: -5x + 4y = 3, x = 2y - 15

Sat, 21 Dec 2024 07:22:43 +0000

I'm not certain what you are asking here, but you've posted two linear equations in x and y. They are not the SAME equation, so they have a single shared solution in X and Y.

The easiest approach to finding this solution (with or without a calculator) is to solve each of them for "Y". Then you can either set them equal to each other and solve for X, or you can graph them both and see where they cross.

solvle 1st equation for y: 5x - 4y = -3
5x - 5x - 4y = -3 - 5x ; subtract 5x from both sides
-4y = -5x - 3 ;
-4y/-4 = (-5x - 3) / 4 ; divide both sides by -4
y = (5/4)x + 3/4

Solve 2nd equation for y: x - 2y = -15
x - x - 2y = -15 - x ; subtract -x from both sides
-2y = -x - 15
(-2y)/-2 = (-x - 15)/-2 ; divide both sides by -2
y = x/2 + 15/2

Since you solved them both for y, you can set the two "x" expressions equal to each other and solve for x.
(5/4)x + 3/4 = x/2 + 15/2 ; multiply everything by 4
5x + 3 = 2x + 30 ; subtract 2x from both sides
3x + 3 = 30 ; subtract 3 from both sides
3x = 27 ; divide both sides by 3
x = 9
Now substitute the 9 for x in either original equation and solve for y.
y = 9/2 + 15/2
y = 24/2
y = 12

So, the final answer is (9, 12).

how do you use these programs

Tue, 17 Dec 2024 18:18:14 +0000

how to download games on ti89

Sun, 08 Dec 2024 18:01:29 +0000

how to download and play games of your choice on ti89 titanium calc

how do I use this program

Tue, 03 Dec 2024 22:24:34 +0000

Polynomial Long/Short division program how do I use it

How can you prevent your RAM on the Ti83+ from clearing?

Wed, 30 Oct 2024 23:11:14 +0000

why wont this downlad on my calculater.

Tue, 22 Oct 2024 17:56:24 +0000

how to simplify a radical

Sat, 19 Oct 2024 17:29:14 +0000

Approximate the integral ∫4.40.4f(x)dx using the trapezoid method to exactly 4 decimal digits.

Fri, 11 Oct 2024 14:59:18 +0000

after i leave asteriod avdvance it freazes my calculater

Sat, 14 Sep 2024 21:42:02 +0000

ti 84 plus ce fiils devce dscriptin every time i plug it in. does anybody know why?

Sun, 01 Sep 2024 18:09:20 +0000

how do I download polynomial division: long and short onto my ti-84 plus calculator?

Sun, 07 Jul 2024 21:27:51 +0000

Answered: Can I play games on a rugelar old TI-83

Sat, 08 Jun 2024 00:39:24 +0000

Yes you can do that

Answered: Y= x^2 -10x -53

Thu, 16 May 2024 21:06:36 +0000

I assume that you are trying to find the roots of "y = x^2 - 10x - 53".

The correct way to solve this one is to "complete the square".
But, on a TI-84 Plus, you can either graph it and see where it crosses the x axis by using the trace function, or you can use the "Apps" button for 9:PlySmlt2 to get to the Polynomial and Simultaneous Equation solver. Use the Polynomial Solver to get approximations of x1=13.83176 and x2=-3.831676.
An "exact" answer can be found by either completing the square, or buying a calculator that has a CAS (Computer Algebra System) built-in, like the TI-89 or one of the other advanced TI models.
To complete the square, start by setting the x expression equal to zero, and moving the constant term to the other side.
x^2 - 10x = 53
Next, take the x coefficient (-10 in this case), divide it by 2 and square the result to get 25. Add the 25 to both sides.
x^2 - 10x + 25 = 53 + 25
At this point you've got a perfect square on the left side. x^2 - 10x + 25 can be replaced by (x - 5)^2. On the right side, just add them together to get 78.
(x - 5)^2 = 78
Subtract 78 from both sides to get:
(x - 5)^2 - 78 = 0
You now have the difference of two squares on the left side (assuming you know the square root of 78) and can re-write as:
((x - 5) + sqrt(78)) ((x - 5) - sqrt(78)) = 0
This means the roots are:
x = 5 - sqrt(78) or x = 5 + sqrt(78)

Answered: how to factor polynomials

Sun, 21 Apr 2024 16:35:08 +0000

It's difficult to "factor" a polynomial on a TI-84. But you can find the "roots" of a polynomial via a couple of different methods.

1. Graph the polynomial. The points where it crosses the x-axis are the "real roots" of the polynomial. Let's graph y=x^2+x-6 and you see it cross the x-axis at x=2 and x=-3. That means two of the factors are (x-2) and (x+3).

2. If it's a newer TI-84 Plus, it will have an APP (under the 'APP' key) named "PlySmlt2" which includes a polynomial root finder. You can use that to find the roots, and turn those into factors.

Answered: Find the center of mass of y= x^2 and y= x+2

Sun, 21 Apr 2024 03:52:18 +0000

The Google search you want is -
calculus center of mass
This will lead you to: https://tutorial.math.lamar.edu/classes/calcii/centerofmass.aspx

Answered: how to compute quantiles on ti89 for qqplot

Tue, 16 Apr 2024 23:59:51 +0000

I'm guessing that what you want to do is replicate the TI-83/84 "NormProbPlot" on the TI-89. This is found on the TI-83/84 series as the last of the plot modes in the statistics plots. It is used to compare a data set to a normal distribution.
Your best bet is found here: http://brownmath.com/ti83/nchk89.htm

Answered: converting a ti 83 program to ti 89

Tue, 16 Apr 2024 23:59:49 +0000

No. The "asm" for the TI-83/84 machines is actually machine language for the Zilog Z-80 microprocessor which those calculators are based on. The "asm" for the TI-89 is built around the Motorola MC68000 processor which is a completely different machine/architecture. There is no good way to translate from one to the other without a complete re-write of the entire program.

For more information, see: http://www.techicalc.org/tifaq/ and check under heading 2: Assembly Programs

Answered: i get an error message saying the file is invalid

Sun, 17 Mar 2024 01:03:57 +0000

It's a little hard to tell what you are asking about, but searching the TI-89 Titanium Guidebook, the only reference to "File" has to do with Applications. In this case, it sounds like you are trying to load an application file with some kind of unexpected content.

So, what sort of file are you trying to load, and where did it come from?

Answered: why isn't 1+2sin(7pi/6) = 0

Wed, 13 Mar 2024 06:00:39 +0000

I don't own a TI inspire CX II, but I'm going to guess the difference lies in "rounding error". On my TI-84 Plus, when I enter "sin(7PI/6)" it returns "-.5". If it returns anything else, you probably are seeing a "rounding error" somewhere in the sin() function. For all practical purposes, any computer that gives a floating point answer with an exponent of less than -7 can be considered to be zero.

Answered: solve for the hole 5(x-2)(x+2)/-4(x-5)(x+2)

Wed, 13 Mar 2024 05:44:31 +0000

You've presented a rational expression of "(5(x-2)(x+2)) / (4(x-5)(x+2))". I assume by "hole", you mean places where the domain is not defined. In this case, the expression is not defined if the denominator is equal to zero. This denominator is equal to zero whenever (x-5)=0 or (x+2)=0, or whenever x=5 or x=-2.

Answered: does the ti-83 plus come with games

Fri, 08 Mar 2024 00:34:50 +0000

No. The TI-83 does NOT come with any games pre-installed. But you can use the TI-connect software to install pretty mucha any program for free from here:
https://ticalc.org/pub/83plus/
If you are new to this, I suggest you stick to the BASIC programs at first until you learn how to use the more complex stuff.

Answered: Is there a Trig identity simplifier for the ti-84 plus?

Fri, 08 Mar 2024 00:22:28 +0000

You can find trig programs for a TI-84 Plus programs at this location:
https://ticalc.org/pub/83plus/basic/math/trigonometry/
Just do a search on that page for "ident" and it should show you everything that's available.

Note that I typed your identity into my TI-89 and it simplified it automatically. That's pretty much a function of any calculator with a CAS, which the TI-84 doesn't have.

Answered: Residue of z*e(1/z) at z=0

Wed, 17 Jan 2024 03:38:50 +0000

Have you seen this?
https://math.stackexchange.com/questions/2075661/residue-of-e1-z

Answered: why won't my programs open from my chromebook?

Tue, 16 Jan 2024 23:39:53 +0000

Are you using a "TI-84 Plus CE" calculator? These, and the TI Nspire models are the only calculators supported for connection to a Chromebook via TI's connection site at:
https://education.ti.com/en/bulletinboard/ti_calculators_and_chromebooks

Mario equation

Wed, 20 Dec 2023 18:40:04 +0000

I want to play Mario with out downloading it

Answered: program to create a slope field

Tue, 19 Dec 2023 23:03:49 +0000

When solving differential equations on a TI-89 calculator, you can specify that it graphs a slope field. This isn't available directly on a TI-83/84 calculator, but you can download a program to do it from:
https://ticalc.org/pub/83plus/basic/math/calculus
or
https://www.calculatorti.com/ti-programs/ti-83-plus-ti-84-plus
On either page, just use "Ctl-F" to find "slope". Many of those will be slope-field programs.

Answered: TI-84 Plus CE Algebra programs

Wed, 13 Dec 2023 19:53:56 +0000

The "TI-84 Plus CE" runs TI-Basic, and anything written for an older TI-84 will run on it. So, to find programs for your calcuator, look in:
https://ticalc.org/pub

https://calculatorti.com/ti-programs
You'll need a link cable and the "TI Connect CE" software on your computer to download the programs to your calculator.

Answered: how do I download that program to my TI-89 calculator?

Mon, 04 Dec 2023 20:28:20 +0000

For alternate methods of downloading programs to your calculator, look at https://ticalc.org/basics .

Answered: how do i install this program on my calculator

Thu, 30 Nov 2023 18:34:03 +0000

What program are you asking about? Different programs can have different requirements for installation.

Answered: Will the Reimann Sum program work on TI-84 Plus CE?

Mon, 27 Nov 2023 20:56:30 +0000

The Riemann Sum program from this site should work on any TI-83, TI-83 Plus, TI-84, TI-84 Plus or TI-84 Plus CE calculator since all of them run the TI-Basic programming language. Even the new "python" models also run the original TI-Basic language in addition to the python language.
DISCLAIMER: I haven't tried this since I only own the TI-81, TI-82, TI-83, TI-84 Plus, TI-86 and TI-89 graphing calculators. But it should work.

Answered: 11x − 20y = 5

Wed, 22 Nov 2023 05:30:55 +0000

That's a very nice linear equation in "Standard Form". It's arranged so that the x variable is first with a positive coefficient, the y variable is second and the constant term is on the right side of the equation by itself.

I'm not certain what you want to do with it, but we can put it in "slope-intercept" form where we simply solve it for "y".

In this case start by adding "-11x" to both sides to get:
11x - 20y -11x = 5 - 11x
next, combine the like x terms on the left side:

11x - 11x -20 y = 5 - 11x
-20y = 5 - 11x
divide both sides by -20 to get:
y = 5/-20 -11x/-20
y = (11/20)x - 1/4
This shows that it is a linear equation with a slope of 11/20 and a y intercept of 1/4.
Since it's in slope/intercept form you can enter it in the graph editor using the [y=] key as:
y1 = 11x/20 -1/4
and then press the [GRAPH] key to graph the equation.

Answered: 1.21=(1.1)^n

Mon, 20 Nov 2023 04:56:13 +0000

To solve the following:
1.21 = (1.1)^n
You know that the inverse of exponentiation is the logarithm, so take the log (base 10) or ln (base e) or whatever base of both sides. For fun we'll take it to base 10.

log(1.21) = n * log(1.1)
now divide both sides by log(1.1) to get:
log(1.21)/log(1.1) = n
Use your calculator to divide log(1.21) by log(1.1) and find the result "2", So...
n = 2
The trick here is to know that when you take the log(a^n) you get n * log(a). You can then divide by log(a) to get "n" by itself.

Answered: 3x^4 – 5x^2 – 2 = 0

Mon, 20 Nov 2023 04:22:31 +0000

Hmm...This is a 4th order equation, and we only know how to solve 2nd order (quadratic) equations.

Maybe if we turned it into a quadratic by letting t = x^2 an replacing x^2 and x^4 in the original equation with t and t^2, repectively.
3x^4 -5x^2 - 2 = 0 becomes:
3t^2 -5t - 2 = 0 <--- that's a nice quadratic that we can solve using either completing the square or the quadratic formula:
(t -2)(t + 1/3) = 0 : Now substitute back for t = x^2 to get:
(x^2 - 2)(x^2 + 1/3) = 0 : now you can factor each of THOSE quadratics to get all 4 of the original factors of the original problem.