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

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Are you sure the calculator turns on? Try using fresh batteries, or try removing and reinserting the batteries and see if you get the same result.

Do you see anything at all when you turn the calculator on? Try pressing '2nd', then 'QUIT' (MODE) a few times.

Did you do anything that you think might have broken the calculator?

Posted on Mar 30, 2011

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Posted on Jan 02, 2017

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If your little sister did as you say, then the logical way to handle the problem is to revert the process.

- Press [2nd] button and release it.
- Press and HOLD the UpArrow.
- As you keep pressing, the top right of the screen will show a series a number, starting with 3 maybe, as you cannot see the 1 or 2, and the display will darken.
- Maintain pressure on, till the display is to your liking.

Jun 16, 2011 | Texas Instruments TI-84 Plus Calculator

This will show you how to do statistics (calculate average, standard deviation, regressions etc.) as to the mode and median refer to the definitions.

TO COMPUTE STANDARD DEVIATION AND 2-VAR STATISTICS.

I assume you know the theory. I will show you the key strokes

For 1-Var statistics

Press [MODE][3:STAT] [1:1-VAR]. You are ready to enter values in the X column.

Enter a number and press [=]. Cursor jumps to second number to enter.

Keep entering numbers and pressing [=] till all numbers are in. Press the [=] key after the last one.

**Press
[AC] key to clear the screen.**

Press [SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.

Press the number corresponding to the statistical value you want, ex 1:n . The variable appears on screen. Press [=] and it will be displayed.

To display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .

To access the sum of squares sigma x^2 and the sum of data sigma x press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x]. Press [SHIFT][STAT][6:MinMax] to access minX and maxX.

For 2-var statistics

To perform 2 variable statistics you press [MODE][3:STAT] and any of the other regression options (except 1:1-Var). A two column template opens where you enter the X and Y values. When finished entering data, press [SHIFT][STAT][5:Var]. to access the different statistics. As I assumed above, you should be able to recognize what each variable means.

TO COMPUTE STANDARD DEVIATION AND 2-VAR STATISTICS.

I assume you know the theory. I will show you the key strokes

For 1-Var statistics

Press [MODE][3:STAT] [1:1-VAR]. You are ready to enter values in the X column.

Enter a number and press [=]. Cursor jumps to second number to enter.

Keep entering numbers and pressing [=] till all numbers are in. Press the [=] key after the last one.

Press [SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.

Press the number corresponding to the statistical value you want, ex 1:n . The variable appears on screen. Press [=] and it will be displayed.

To display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .

To access the sum of squares sigma x^2 and the sum of data sigma x press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x]. Press [SHIFT][STAT][6:MinMax] to access minX and maxX.

For 2-var statistics

To perform 2 variable statistics you press [MODE][3:STAT] and any of the other regression options (except 1:1-Var). A two column template opens where you enter the X and Y values. When finished entering data, press [SHIFT][STAT][5:Var]. to access the different statistics. As I assumed above, you should be able to recognize what each variable means.

Apr 19, 2011 | Casio FX-115ES Scientific Calculator

Adjust the screen contrast. Turn the calculator on. Press and release the 2nd key, then press and hold the up-arrow key until the numbers darken. If you go too far, repeat the process with the 2nd and down-arrow keys.

Mar 22, 2011 | Texas Instruments TI-86 Calculator

Press MODE until the setting screen showing "Fix Sci Norm" appears. Press 2 to select scientific notation, then select the number of digits you want after the decimal point.

Nov 04, 2010 | HP 10s Scientific Calculator

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

If this doesn't do the trick, please append a comment and we'll go from there.

If this doesn't do the trick, please append a comment and we'll go from there.

Aug 10, 2010 | Texas Instruments TI-83 Plus Calculator

Hello,

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.

- If calculator is in MathIO ( a Math indicator appears on the upper band of the screen), enter the base of the power (here 2). A number 2 with a raised empty square appears.The cursor will blink in the raised square. Enter there the exponent (here 12) and press [=]. Result 4096 appears at the bottom of the screen.
- If in LineIO (no Math indicator appears on the narrow band at the top of the screen), press 2 and then the key I talked about above. On the screen a number 2 appears with a hat and a left parenthesis. Type in the exponent (here 12) , the right parenthesis and press [=]. The calculator should display 4096.000...

Nov 17, 2009 | Casio fx-300ES Calculator

Hello,

You should specify your calculator and avoid posting the same question multiple times.)

Here is the solution for FX-300ES

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.

You should specify your calculator and avoid posting the same question multiple times.)

Here is the solution for FX-300ES

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.

- If calculator is in MathIO ( a Math indicator appears on the upper band of the screen), enter the base of the power (here 2). A number 2 with a raised empty square appears.The cursor will blink in the raised square. Enter there the exponent (here 12) and press [=]. Result 4096 appears at the bottom of the screen.
- If in LineIO (no Math indicator appears on the narrow band at the top of the screen), press 2 and then the key I talked about above. On the screen a number 2 appears with a hat and a left parenthesis. Type in the exponent (here 12) , the right parenthesis and press [=]. The calculator should display 4096.000...

Nov 17, 2009 | Office Equipment & Supplies

Hello,

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.

Hope it helps

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.

- If calculator is in MathIO ( a Math indicator appears on the upper band of the screen), enter the base of the power (here 2). A number 2 with a raised empty square appears.The cursor will blink in the raised square. Enter there the exponent (here 12) and press [=]. Result 4096 appears at the bottom of the screen.
- If in LineIO (no Math indicator appears on the narrow band at the top of the screen), press 2 and then the key I talked about above. On the screen a number 2 appears with a hat and a left parenthesis. Type in the exponent (here 12) , the right parenthesis and press [=]. The calculator should display 4096.000...

Hope it helps

Nov 17, 2009 | Casio Office Equipment & Supplies

Hello,

Turn calculator [ON]. Press [SHIFT][MODE] (Setup).** Press the Down Arrow once**. You see the option [6:<-CONT->]. That is the option that changes the contrast of the display screen. By pressing the [Right Arrow] several times, you darken the screen. By pressing the left arrow you lighten the screen.

Hope it helps.

Turn calculator [ON]. Press [SHIFT][MODE] (Setup).

Hope it helps.

Oct 13, 2009 | Casio FX-115ES Scientific Calculator

Hello,

.The selft tests will show you what is wrong, and if the calculator requires repairs.

**You can reset the calculator**:

Turn the back of the calculator towards you. Extract the top left rubber pad on the back of the calculator and use a paper clip to press the Reset button. If that does not restore the calculator to health, you should perform the**dagnostic tests. **

The following procedure valid for the 48G should work for the HP48GX.

Make the calculator perform a

**Self test.**

IROM OK,

IRAM OK,

HP48GX OK

The self test will continue repeatedly until you perform a

**System Halt**

If you do not see IROM OK and IRAM OK, the calculator requires service.

If the above procedure is successful, you may want

**to test the keyboard.**

**System Halt.**

If you follow the**proper sequence **and a hexadecimal number appears after pressing a key, the calculator requires service.

Hope it helps.

.The selft tests will show you what is wrong, and if the calculator requires repairs.

Turn the back of the calculator towards you. Extract the top left rubber pad on the back of the calculator and use a paper clip to press the Reset button. If that does not restore the calculator to health, you should perform the

The following procedure valid for the 48G should work for the HP48GX.

Make the calculator perform a

- Turn calculator on
- Press and HOLD the key [ON]
- Press and release the key with "E" to its right (the one before last in first row)
- Relaese the [ON] key.

IROM OK,

IRAM OK,

HP48GX OK

The self test will continue repeatedly until you perform a

- Press and HOLD the [ON] key
- Press and release the "C" key
- Release the [ON] key.

If you do not see IROM OK and IRAM OK, the calculator requires service.

If the above procedure is successful, you may want

- Turn calculator on
- Press and HOLD the [ON] key
- Press and release the "D" key.
- Release the [ON] key
- Press and release the "E" key. KBD 1 should appear on the top left corner of the screen.
- Starting at the upper left corner of the keyboard, and moving Left to right, press every key
**in sequence**. If you follow the sequence and the keys are functioning properly you should hear a hight pitch sound at each press. - If everything is OK, when you press the last key (+) the screen displays KBD 1 OK.

If you follow the

Hope it helps.

Jul 01, 2008 | HP 48gx Calculator

Jul 21, 2014 | Texas Instruments TI-84 Plus Silver...

Jun 14, 2014 | Texas Instruments TI-84 Plus Silver...

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