Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

# TI-84 ALPHA + F1 does not work!!! it used to, but now it doesn't, can I know how or why it happened?

My TI-84 Plus calculator was working well and the functions were also working perfectly, but the functions suddenly stopped working, I also have the latest operation system 2.55mp.

Posted by Anonymous on

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Posted on Jan 02, 2017

i finally fixed my calculator~

1. if you have a ti 84 plus silver, plus, or just ti 84, find a friend who has either a ti 84 plus silver, plus, or just ti 84. (as long as the number is the same)

2. link the two calculators together

3. using your friends calculator, press the [2nd] and the one next to alpha [x,t,o,n]

4. go all the way down to [send os]

5. send it to the other calculator and your problem should be fixed

Posted on Sep 15, 2008

The problem is simple. You're trying to get an [H+] concentration which is obviously going to have a value of some number times ten raised to a negative power. Therefore, you have to insert the negative value of the pH into the 10^(x). When you insert said negative number you will come out with the right answer.
i.e.
The pH of a sample of human blood was calculated to be 7.41. What is the [H+] concentration of the blood?
10^(-7.41) = [H+]
[H+] = 3.9 E-8
(the answer should only have two sig. figs because the pH has two digits after the decimal.

Posted on May 18, 2009

I'm not specifically familiar with the TI83 or TI84 but I've used a lot of TI calculators in my time, so I'll give it a try. If your trying to find the antilog of a number in base 10 enter the number and hit the (10 to the X) button. If you're trying to find the antilog of a number in in base e (natural log), enter the number and hit the (e to the X) button.

Posted on May 29, 2009

The 1/x is the same as the x^-1 button which is right above the x-square button.

Posted on Jul 07, 2009

1. You draw two or more graphs.
2. After the graphs are displayed, press [2nd][TRACE] to access the (CALC)ulate menu.
3. Select [5:Interesct]
4. You will be prompted for a first curve: the equation of the curve will be displayed at the top left corner of the screen. If it is one the intersecting curves, press [ENTER]
5. You will be prompted for the second curve. (You can move from one curve to another by pressing the UpArrow or DownArrow).
6. After two curves are selected, you will be prompted for a guess for the X-value of an intersection point: you can use the keypad to enter a guess or use the left or right arrow to move the cursor towards a point of your choosing (if there are more than one point).
7. After a short while the calculator gives you a solution.
8. If it fails, you must make a better guess.

Posted on Apr 19, 2010

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It depends on the version of the Operating system.
This works for Older and newer OS
Enter numerator, press the [division key], enter the denominator, press the [MATH] key and select [1:ToFrac] [ENTER]

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This gives you access to the Tabs shown in the following screen capture.

Press 1:n/d for improper fractions or 2:Un/d for mixed numbers.
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The F1 key is activated by pressing the alpha (green button) and then the f1 key. If that doesn't work then your calculator may be broken and you might want to check with your warranty to get a new one.
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### Dear Sir or Ma'am I have the TI- nspire that has the TI-Plus key pad. I just received the TI-Plus keypad. I install the the keypad and on the screen it shows press Alpha F1-F4 for short cut menu. I see the...

the F1-F4 keys are located at the very top of your keypad. They are also known as the 'Y=' WINDOW, ZOOM, TRACE, and GRAPH keys. If you look at these keys you will see f1-f4 printed on them in green.

Cheers
Sine Wave

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The calculator OS has been upgraded to the version 2.53 MP.
For this version, whenever you remove batteries (or replace them) and turn calculator ON, you are reminded to Press [ALPHA][F1-F4] to locate Shortcuts Menu.
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Here is what these cryptic messages mean.

Certain functions implemented on the new OS are available by pressing the [ALPHA] key followed by F1, F2, F3 or F4.
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It also gives you the option to flash the reminder every time the calculator memory is reset (CONTINUE) or NOT to SHOW the REMINDER again.

Usually after the RAM cleared message, press [2:Continue] or any other key but [1: ] to keep being reminded how to access the new functions.
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### Waiting Please Install Operating System Now.

i finally fixed my calculator~

1. if you have a ti 84 plus silver, plus, or just ti 84, find a friend who has either a ti 84 plus silver, plus, or just ti 84. (as long as the number is the same)

2. link the two calculators together

3. using your friends calculator, press the [2nd] and the one next to alpha [x,t,o,n]

4. go all the way down to [send os]

5. send it to the other calculator and your problem should be fixed

Aug 27, 2008 | Texas Instruments TI-84 Plus Silver...

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