Question about Texas Instruments TI-83 Plus Calculator

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Can't enter numbers

My cursor looks like a bunch of dots in a square and I cannot enter any numbers or letters. How can I fix this? Thanks!

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  • mazecrew9114 Jun 24, 2008

    My calculator was working fine and then all of the sudden none of the buttons work except for the on button. It won't turn off until it auto shuts down, and the number buttons do not work. I just have a flashing square at the top.

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Hi try the firmware update 1st ok online from website ok texas.com

Posted on Feb 05, 2008

  • gajonline Sep 27, 2010

    I also have the same problem in my TI83 cal. I donno how to update, and I dont have a cable to plug this in to a computer.

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When i turn on my TI-84 silver edition only thing i see is a blinkin blaxk square on the top let corner.hiting any key wont do nothing it stays the same. Need help


If a checkerboard cursor ( black square ) is displayed, then either you have entered the maximum number of characters in a prompt, or memory is full.
If memory is full:

-Press 2nd then MEM and then 2 to display the MEMORY MANAGEMENT / DELETE menu.

-Select the type of data you want to delete, or select 1:All for a list of all variables
of all types. A screen is displayed listing each variable of the type you selected
and the number of bytes each variable is using.

-Press up-arrow and down-arrow keys to move the selection cursor > next to the item you want to delete, and then press DEL

Mar 23, 2012 | Texas Instruments TI-84 Plus Silver...

1 Answer

I get ERR: DOMAIN everytime I try to inverse a matrix


  1. First, Press the "MATRX" button

  2. Next, enter a matrix into the calculator. To enter a matrix, press the arrow that points to the right two times when the cursor highlights letter "A." This moves the top cursor to "Edit." Press "Enter" to select the "Edit" option.

  3. Next,, enter the matrix's numbers into the matrix on the calculator. Press "Enter" to move the cursor over one column. Press a button that has a dash symbol within parenthesis [( - )] to move down one row. Repeat the steps until the matrix is completed.

  4. Next, Press "2nd" then "Mode" to go back to the home screen. Press "MATRX" to enter the matrix screen again.

  5. Finally, press "Enter" when the cursor highlights matrix "A" then press "[x^ -1]." Your screen should read "[A]^ -1." Press "Enter" again to display the inverse matrix.


    I got this information from eHow.com

Dec 07, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

How to solve log base 2....


  1. In MthIO, pressing the log key displays a template: the log function and two squares, one smaller and below the main line, and another, bigger square/rectangle on the main line.
  2. Use the down arrow to move cursor to the smaller square end enter 2 as base.
  3. Use the up arrow to move cursor to the bigger square and enter the number whose binary log you want to calculate.
  4. Close the right parenthesis.
  5. Press the [=] sign at the bottom right of the calculator.
MthIO is the default Input/Output format of the calculator. To set it
  • Press [SHIFT][MODE] to access (Setup)
  • Select [1:MthIO]

Aug 17, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

What do i key in for 2 to power of 12??


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.
  1. 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.
  2. 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 fx-300ES Calculator

1 Answer

I want to know how to key in to calculate 2 to the twelveth power to get anser.


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.
  1. 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.
  2. 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 | Calculators

2 Answers

2 to the twelve power equals what


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.
  1. 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.
  2. 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...
In the exemples above I used 2^12. But you can enter any base (2, 3, 5.5, 16/47, ) and any exponent ( 12, 13/48, 0.007654, even negative values).
Hope it helps

Nov 17, 2009 | Casio Calculators

1 Answer

TI 84 plus calculator, flashing dot in upper left hand corner


Hello,

When you turn the calculator on, its screen is cleared, save for a small square on the top left corner. This is the cursor and it is blinking: The calculator is waiting for you to order it to perform some calculation.

Try this simple operation
[1] [+] [1] [ENTER]. The calculator will display the result one line down justified to the right.

Hope it helps.

Aug 26, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

Changing the Cursor Appearance


I had this same problem on my TI 89... You must have accidentally set your calculator to insert mode. To switch it back to the thin cursor, input the following keystrokes... Go to the "2nd" key to enter second function mode. Then press the button with an arrow on it pointing to the left(The key that you use to backspace). Do you see the "INS" lettering above the backspace key? There's your solution :-)

Apr 07, 2009 | Texas Instruments TI-89 Calculator

1 Answer

How to factor?foil imaginary numberz


If you want to enter a complex number, simply put in as (a,b). For example, to enter the complex number 1+2i, enter
( 1 , 2 )

Feb 25, 2009 | Texas Instruments TI-85 Calculator

1 Answer

Graphs


From the Y= editor:

1. Move the cursor to highlight the applicable function.

2. Select the Style menu and press 2nd F6.

3. Select the applicable style.

In this case you want Dot. The other choices are Line, Square, Thick, Animate, Path, Above, and Below.

For full details look in the section "Basic Function Graphing" in the TI-89 Guidebook.

Apr 01, 2008 | Texas Instruments TI-89 Calculator

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