Texas Instruments TI-84 Plus Calculator - Answered Questions & Fixed issues

Decimal to fraction: Type in your decimal (i.e. .5) Then press [MATH] > press [ENTER] on [>FRAC] Then press [ENTER] again Example: .5>Frac 1/2 For a fraction to decimal: Simply type in the fraction and press [ENTER] Example: 1/3 .33333333333 (*Note that the decimal value is truncated to fit the screen)
Hope that helps! Have fun calculating!

Texas... | Answered on Jul 26, 2019 | 2,195 views

Your calculator is set to radians, which is the norm for higher mathematics. To set it to degrees, press MODE to bring up the mode editor, press down-arrow twice to get the the angular mode, press right-arrow to highlight "DEGREE," and press ENTER. Press 2ND [QUIT] to exit the mode editor.

Texas... | Answered on Jun 21, 2019 | 1,792 views

Is it somehow preventing you from graphing, or are you simply not getting the graph you expect?

Most likely you have the angular mode set wrong. You probably want it set to radians. Press MODE, move to the third line, highlight RADIAN, press ENTER, then 2ND [QUIT].

If it's not the angular mode, please reply to this post and give an example or two.

Texas... | Answered on May 18, 2019 | 2,507 views

I had that same problem.

the blinking black box on my calculator would stay on.
every time I turned on my calculator, it would say 'ram cleared'
if I held down a button for 2 seconds or so, it would finally respond

blow really hard into the I/O port. It fixed it for me!

Texas... | Answered on Jan 08, 2019 | 501 views

Use the division key.

Texas... | Answered on Sep 07, 2018 | 2,012 views

Press Mode, and change display mode to float.

Texas... | Answered on May 21, 2018 | 290 views

It is 1

Texas... | Answered on May 20, 2018 | 255 views

The key allows you to enter different variables, X for function graphs, T for parametric graphs, Theta for polar graphs and n fro sequence graphs.

Texas... | Answered on May 20, 2018 | 602 views

Cosine values are between -1 and 1. The arcosine domain is between -1 and 1. The value you have is out of range.

Texas... | Answered on May 20, 2018 | 75 views

Square root of (y^5)

Texas... | Answered on May 20, 2018 | 46 views


Texas... | Answered on May 20, 2018 | 45 views

Read about the nature of the cursor. It can be on Insert or overwrite. If the cursor is full square and flashing, that mean the memory register for the input line is full and you cannot input anymore strokes.

Texas... | Answered on May 20, 2018 | 814 views

You may be making a confusion between intercepts and intersections. Intercepts are crossing of the axes. Intersections are between two curves: You need to have two curves graphed. You choose the first curve by selecting it (Up or Down Key), and then the second one.

Texas... | Answered on May 20, 2018 | 555 views

9 3 . 6 / ( 1 . 5 + 6 * . 4 ) ENTER
on your TI-84 Plus to see the answer.

Texas... | Answered on Apr 17, 2018 | 134 views

If either error occurs when trying to graph a function (not a STAT PLOT), the error can be corrected by turning off the STAT PLOTS. The following steps will turn the STAT PLOTS off, allowing the graph of the function to be displayed.• Press [2nd] [Y=] to access the STAT PLOTS menu.
• Select 4: PlotsOff.
• Press [ENTER].
• Try graphing a function like y = x^4-3x^3+6x-1

06-03-2017 image001-sswjakinw4t03fuerzdthsg3-1-0.jpg

Texas... | Answered on Jun 03, 2017 | 181 views

Wow. Just wow. How did that person do that?! Anyways, try resetting ALL of the memory, and see if that helps, if not, ask the student what she did so that it can be reversed (probably by doing the same steps in the opposite order.

Texas... | Answered on Dec 10, 2016 | 1,648 views

Use the square brackets ("[" and "]"). They're the shifted functions of the multiply and subtract keys. For Y(sub 1) enter it as "Y[1]".

Texas... | Answered on Sep 23, 2016 | 11,753 views

Ok, try these two things and you should be just fine.
1.) Check your range for your graph. It is possible that the range you are using isnt large enough to show the curve. Also try using Z-fit vs Z-st. These are options that your calculator will give you once the equation is graphed.
2.) Place a parenthesis around the 2x, make sure that you and the calculator are both using the same order of operations. This move mill ensure that the calculator will multiply the variable, x, by two and then do the exponential.
This should do it!
Happy Graphing!

Texas... | Answered on May 03, 2016 | 792 views

looking at the buutons, it is at the far left, 5th down it says x2 put the number before it then click that button and then it should square

Texas... | Answered on Apr 27, 2016 | 56 views

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