Top 20 Texas Instruments TI-84 Plus Calculator - Page 8 Questions & Answers

The natural log is marked "LN" and is on the key just to the left of the "4" key.

Sorry, the TI-84 only has one font.

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.

Exactly what happens when you press the Graph button? Do you get an error message?

Try to find a classmate who has the same calculator (TI84 Plus or TI84 Plus Silver Edition) and effect a transfer of the OS from the classmate's calculator using an IO cable.Alternatively, download the new version of TI Connect (version 4.) and install it on your computer. Then connect your calculator to the computer through the USB cable. When it recognizes the calculator click the update button in TI Connect interface and select update OS. Good luck.

Raise e to the first power. On the TI84, press 2ND e^x 1 ENTER

Unfortunately, you can't. The TI-84 has a limited ability to work with fractions but it won't work with irrational numbers.

Try adjusting the contrast. 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. Does it?

50 5/6

Try entering on the same command line your calculation followed by the ToFrac command. That should work. Here is a screen capture from a TI83Plus in complex mode (a+ib).

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 are concerned about fraction handling and conversion to decimal representation, upgrade the OS of your calculator to 2.5x MP. As to handling of irrational numbers (such as square roots) you should visit the TIcalc.org website to look for any 3rd-party program that can do that.

y-y1=((y2-y1)/(x2-x1))(x-x1) See cap image below

It seems to me that the cursor (regardless of its shape) is always blinking. What is significant is the shape it has.Full rectangle: Overwrite character at the right.Underline : Insert mode, inserts next key press to the left of its location.Checkered rectangle: No entry is possible because command or memory is full.A in reverse video: in ALPHA mode.

See next explanation below

keyboard has become faulty...replace it..

Press MODE, press up-arrow seven times to the "MATHPRINT CLASSIC" line, use right-arrow to highlight "CLASSIC," press ENTER, then press 2ND [QUIT] to change from the mathprint to the classic display.

Make sure you have the appropriate angle mode. Press MODE and check the third row.

You're missing a parentheses.If you mean e^(ln(177/149)/7)*26 then press2ND [e^x] ( LN ( 1 7 7 / 1 4 9 ) / 7 ) right-arrow * 2 6 ENTERif you're in the MATHPRINT mode. In the CLASSIC mode press2ND [e^x] LN 1 7 7 / 1 4 9 ) / 7 ) * 2 6 ENTER

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.