Solution 12651: Clearing the Memory on the TI-81.
...e memory of the graphing calculator is erased and all defaults are set to factory defaults. If the screen goes entirely blank after this procedure, adjust the contrast by pressing and releasing the [2nd] key and then holding down the up arrow until the cursor is again visible. Solution 12651: Cl...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12651
Solution 11831: Correcting an Address Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...he TI-89 family: 1) Hold down the following keys [2nd] [] (right and left arrow keys). 2) Press [ON]. 3) Release all the keys at the same time. 4) Adjust the contrast, if necessary. On the TI-92 family and Voyage 200: 1) Press and hold [2ND]. 2) Press and hold [LOCK] (the little hand). 3) Whil...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11831
Solution 12177: Using the ZoomBox, ZoomIn, and ZoomOut Tools to Explore a Graph on the TI-89 Family, the TI-92 Family, and the Voyage™ 200.
... and ZoomOut tools on the TI-89 Family, the TI-92 Family, and the Voyage 200? After graphing a function, the [F2]Zoom menu offers several tools for adjusting the viewing window. The Zoom menu can be accessed from the Y= Editor, the Window Editor, or the Graph screen.1. ZoomBox: Draw a box and zoo...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12177
Solution 16510: How To draw a vertical line on a TI-86.
... Press [F3] for the Vertical line. • Use the left and right arrows to move the line to where you want it. • Press [ENTER]. • To enter another line just move the arrow keys and press [ENTER]. The second option: • On the home screen press [2ND] [CATLG-VARS]. • Select CATLG by pressing [F1]. ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/16510
Solution 11814: Sorting Columns in a Data, List, or Matrix Variable Using the TI-89 Family, TI-92 Plus, or Voyage™ 200.
... highlight the name of the column to be sorted (c1, c2, or c3), press [2nd] [F6] ([F6] for the TI-92 family and Voyage 200) and select "4:Sort Col, adjust all." The selected column or "key" column will be sorted, however, all other columns will be sorted as well to maintain the relationship betw...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11814
Solution 12092: Creating a Scatter Plot Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...to plot the points). 4) Type in c1 for X and c2 for Y. 5) Press [ENTER] two times. 6) Press [♦] [GRAPH] (Note: The viewing window may need to be adjusted. Press [F2][9].) Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information. Solution 12092: Creati...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12092
Solution 12054: Finding the Curl of a Vector Field on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...x] [Y] [x] [Z] [STO►] [ALPHA] [p] [ENTER]. 12) Press [Y] [STO►] [ALPHA] [q] [ENTER]. 13) Press [Z] [STO►] [ALPHA] [r] [ENTER]. Please Note: X*Y*Z is just an example expression. Feel free to use whatever expressions describe the vector field in question. 14) Press [2ND] [ALPHA] [c] [u] [r] [l] [A...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12054
Solution 12048: Changing the Scale of a Graph in The Geometer's Sketchpad® App for the TI-89 Family, TI-92 Plus and Voyage™ 200 Graphing Calculators.
... listed below. For TI-89 Family users: • Press [2nd] [F1] to access the F6 menu. Select 4: Show Grid.• Move the arrow to select point (1,0). (1,0) is just an example and any other point can be used, if preferred.• With the arrow on the selected point, press and hold the [ALPHA] key while press...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12048
Solution 10349: Calculation Method Used by the Polynomial Root Finder on the TI-85 and TI-86.
...Basically, the coefficients appear across a row or column (there are variations) and the rest of the matrix is all zeros except for a pattern of ones just off the main diagonal. The property of this matrix is that the characteristic polynomial of the matrix will be the same as the polynomial use...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10349
Solution 10399: Differential Equation Solver for the TI-85.
...noticeable as a solution plots a number of pixels in "spurts" or during a trace when the calculator pauses to calculate for some time on some pixel jumps. To be more specific, the calculator computes a solution value at each "t" value of (tMin + n*tStep) based on interpolation between the "ad...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10399
Solution 10392: Transferring Programs or Data Between a TI-82 and TI-83.
...However, differences between the two products may affect some transmitted data. The table below shows the commands the TI-83 software automatically adjusts to when received from a TI-82. TI-82 TI-83 nMin PlotStart ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10392
Solution 11743: Algorithm for the dotP() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...™ 200 calculators as an inner product of its arguments. The inner product is defined as followsdotP(vec1, vec2) = vec2' * vec1,where ' denotes the conjugate transpose and * represents standard matrix/vector multiplication. (Note that this definition reduces to the "usual" dot product if vec1 and ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11743
Solution 12106: Verifying a Symbolic Result on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
... the factor function. Now, if done by pencil and paper, the user would expect to see a result of: 8x^2*(-2x-3). However, both answers are correct, just displayed differently by the calculator. To check and make sure both answers are equal to each other: • Subtract the result from the expected...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12106
Solution 10458: Instructions for Installing the TI-92 Plus Module.
...ies that were removed earlier. (Verify correct polarity.) • Verify that the graphing calculator is operating properly. (The contrast may need to be adjusted.) If the calculator does not function, hold down [ON] and remove a battery. Then remove and reinsert the module, making sure it is seated fi...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10458
Solution 10939: Calculator Options for Individuals with Visual Impairments or Low Vision.
...ality of the TI-84 Plus family of graphing calculators is now more accessible to the vision-impaired using the TI-84 Plus CE Online Calculator, in conjunction with the JAWS screen reader software for Windows PCs. Users can now experience text-to-speech for many of the popular functions of the TI-...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/general-information/10939
Solution 16409: Correcting a TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculator That is Locked Displaying "Busy" for a Prolonged Period of Time.
... Press and hold down the [2ND] key and the left and right arrow keys all at the same time. • Press [ON]. • Release all the keys at the same time. • Adjust the contrast, if necessary. This should reinitialize the operating system, after which the calculator should then be functional again. If the ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/16409
Solution 11845: Resolving the Error Message "Illegal Instruction" on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...taneously. If this procedure does not restore the unit, remove a battery and press [ON] for 30 seconds. Replace the battery, turn on the unit, and adjust the contrast. If you require additional assistance please contact TI-Cares. Solution 11845: Resolving the Error Message "Illegal Instruction...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11845
Solution 10375: Correcting a DOMAIN Error When Using the Seq() Command on the TI-82.
...the seq() command has more than 99 elements, which is the most elements the TI-82 will hold. The range or step of the seq() command will need to be adjusted so the list has at most 99 elements. Please see the TI-82 guidebook for additional information. Solution 10375: Correcting a DOMAIN Error ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/10375
Solution 37335: Troubleshooting a TI-89 family, TI-92 family or Voyage 200 Graphing Handheld That Will Not Turn On or Function Properly.
...easing [+] key. Repeat a few times. Sometimes the calculator is actually ON but looks like it is not if the contrast is turned all the way down. To adjust or lighten the display, use [-]. Try a fresh new set of AAA batteries, all from the same package. Turn the graphing calculator on and ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/37335
Solution 12266: Calculating Powers on the TI-30Xa, TI-30Xa Solar, or TI-36X Solar.
...mple: Raise 5 to the 3rd power. 1) Press the [ON/AC] key to completely clear the calculator. 2) Input [5]. 3) Press the [y to the x] key (located just above the division key). 4) Input [3]. 5) Press [=]. The display will show 125. Please see the scientific calculator guidebooks for addition...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12266
Solution 37336: Troubleshooting a TI-73 Family, TI-80, TI-81, TI-82, TI-83, TI-85, TI-85 and TI-86 Graphing Calculator That Will Not Turn On or Function Properly.
...ast is turned all the way down. Try a fresh new set of AAA batteries, all from the same package. Turn the graphing calculator on and try to adjust the display contrast if necessary, press and release the [2ND] key followed by pressing and releasing [UP] arrow. To adjust or lighten the dis...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/37336
Solution 12282: Changing the Angle Mode Setting on the TI-34 II Explorer Plus™.
...Press either [◄] or [►] to highlight RAD. 3) Press [ENTER]. The calculator is now set to operate in the radian angle mode. To switch back to degrees, just use the same procedure but underline DEG instead. Resetting the calculator will also reset it back to factory default settings. To do this: 1)...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12282
Solution 10688: Replacing the Batteries In a TI-30Xa.
...s area. Please Note: The reset pad is in different locations on different revisions of the calculator. If you are unable to locate the text reset pad just roll the coin randomly across the circuit board and you will eventually reset the calculator. Make sure to only roll and not scrape or you may...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10688
Solution 34597: Shortcuts for Working with Menus on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...are a few shortcuts that would help in navigating menus easier: • When working in a menu that has a long list of items, i.e., [CATALOG] or [APPS]; to jump down to a specific portion of the list, press the key that corresponds to the first letter of the function to be used. For example, when in th...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34597
Solution 34778: Creating a Box Plot on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...s CE and TI-84 Plus C Silver Edition. 7) Press [GRAPH] to see the Box Plot. Please Note: Press [ZOOM], select 9:ZoomStat, and press [ENTER] to adjust the window settings. Please see the TI-83 Plus and TI-84 Plus Family guidebooks for additional information. Last updated: 6/19/2023 Solut...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34778