20 Most Recent Texas Instruments TI-84 Plus Silver Edition Graphing Calculator - 8 Questions & Answers

Enter the numerator and denominator then press Math ToFrac

Press then release the [2nd] key. Press and hold the UpArrow to increase contrast (makes screen darker), or the DownArrow to decrease it (makes the screen lighter/fainter).

You must press the [ALPHA] key before you can see the tabs on the screen. When the tabs are displayed you can use the function keys, and the arrow keys to select a specific menu item.

TI calculators have an annoying habit of dimming the screen, especially 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. Does it?

You cannot have a scatter plot with just one variable. You need values in L1 and values in L2. If you have only one set of values you can do 1-var statistics and plot a histogram (x-value vs. frequency).

Try to set the Zoom window to ZoomStat, this way the scatter plot will display all statistical points in the data set.

I have the exact same problem (just happended recently) with my TI-5045 II after 25 years of good service. My solution? I just bought another model: Sharp EL-1801V at Stapels for about $31.00. To get the old one fixed will probably cost me $25.00-30.00 just to diagnose, plus shipping and parts and labor. And that assumes I can find a shop to do it, or that TI still stocks the part(s) gone bad. Same old problem with all technology.

Refer to page no 13 of user manual of calculator. (TI-30XS / TI-30XB MultiView™ Guidebook - Texas Instruments - US and Canada) It will solve your problem.

Try the Ti site. I doubt it is still available as it is a very old machine.

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