20 Most Recent Texas Instruments TI-84 Plus Calculator - Page 6 Questions & Answers

Look under Math>Probabilities. Symbol is nPr

You apparently have your calculator set to display no digits to the right of the decimal point. 5/2 is 2.5, which rounds to 3, and 50/100 is 0.5, which rounds to 1. To change the display setting, press MODE, highlight the desired settings on the first two lines, then press ENTER followed by 2ND QUIT. Try setting "NORMAL" and "FLOAT" and see what results you get now.

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

There is no such button. The factorial function is in the probability submenu of the math menu. Press MATH left-arrow 4 to access the factorial.

Hi,

This could be a contrast issue. Look for blue contrast markers on the up and down arrow keys on the top-right of the device.

1. Press "Alpha" (top left of device below screen)
2. Press the down arrow key on the right towards the top of the device

Repeat these steps until the screen becomes clear again (you must press "Alpha" for each contrast adjustment).

If down doesn't work, try up several times instead.

8 and 10. If this is homework, be sure to show your work.

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.

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff. If you're trying to do something else when the error comes up, what are you trying to do?

24 quarters and 26 dimes.

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.

The key is marked x-superscript-negative-one and is just below the MATH key on the leftmost column of the keyboard.

6.29E-3 or 6.29 * 10^(-3)

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff. If you're doing something else, what exactly?

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff. If you're trying something else when you get this error, please tell us exactly what you are trying.

The key is marked x-superscript-negative-one and is just below the MATH key on the leftmost column of the keyboard.

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff. If this doesn't fix it then please tell us exactly what you're trying to do.

The key is marked x-superscript-negative-one and is just below the MATH key, left of the SIN key.

There isn't a dedicated key for the factorial. It's available via the menu by pressing MATH left-arrow 4.

Press f followed by a digit representing the number of digits you want after the decimal point.