Solution 31951: Correcting a TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculator That is Locked Displaying "Busy" When Calculating Sigma Summation.
...n? The summation failures occur when the calculator attempts to locate an exact equivalence for a calculation that can only be displayed as a decimal approximation. To correct the "busy" error when you are calculating sigma summation, please verify that the calculator's mode is set to approximate...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/31951
Solution 11708: Calculating Natural Logarithm on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...Titanium, use the [2nd] [LN] keys.Natural log of 100. (4.6051.......)• Press the [LN] key and input 100.• Press the [ENTER] key.Natural log of 35. (3.5553.....)• Press the [LN] key and input 35.• Press the [ENTER] key.Natural log of 73. (4.2904.......)• Press the [LN] key and input 73.• Press the...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11708
Solution 11707: Calculating Linear Regressions on the TI-89 Family, TI-92 Family, and Voyage 200™ Graphing Calculators.
... data on the TI-89 family, TI-92 family, and Voyage 200. Data for this example. x values: 5, 9, 7, 11 y values: 12, 15, 14, 17 Solution: • Press [APPS][6][3] Press the down arrow twice. (If the Apps Desktop is on, press [APPS], select Data/Matrix Editor, and press [3].) • In the box beside Va...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11707
Solution 30350: Using the Two-Graph Mode on the TI-89 Family and Voyage™ 200 Graphing Calculators.
... etc. • Graph screens. Note: If both sides use the same graphing mode, each side can select different functions from the Y= Editor. Non-graph-related applications (Home screen, Data/Matrix Editor,etc) are shared and can be displayed on only one side at a time. Setting the Mode Several mode sett...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/30350
Solution 11968: Integer Division on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ivision and the remain( ) function can be used to calculate both the quotient and remainder. For example, the division 123/32 will return 3.84375 in approximate mode. The number of units 3 is the quotient. To find the remainder, press [2nd] [MATH] [1] [ALPHA] [A] to select A:remain( then input ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11968
Solution 12106: Verifying a Symbolic Result on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...d and the result from the calculator. • Set each function equal to one another to see if the calculator returns a "true" statement. • Substitute appropriate random values for some or all of the variables in each of the two expressions. Please see the TI-89 family, TI-92 family and Voyage 200...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12106
Solution 30571: Creating User Defined Units For Unit Conversion on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ch How do I create my own user defined units for unit conversion on my TI-89 family, TI-92 family, or Voyage 200 graphing calculator? If the appropriate unit cannot be found in the units menu a user may define a unit to store in the units menu. For example, to convert cubic feet into ga...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/30571
Solution 11394: Inferential Statistics on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...rs do not include built in inferential statistics functionality. This functionality can be added by installing either the Statistics with List Editor App for the TI-89 and TI-89 Titanium or the Statistics with List Editor App for the Voyage™ 200 and TI-92 Plus. Solution 11394: Inferential Statis...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11394
Solution 28495: Converting Lists to Matrices and Vice Versa on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ert lists to matrices use the list►mat( command. Please refer to the examples below. To convert a list to a matrix follow the steps below: • Press [APPS] and choose Statistics with List Editor App. • Press [▼] [1] [ENTER] [2] [ENTER] [3] [ENTER] [6] [ENTER] [1] [ENTER] [4]. • Press [HOME]. • P...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/28495
Solution 28011: Using the Chi-Squared Goodness of Fit Test on the TI-89 Family, TI-92 Plus, or Voyage™ 200 Graphing Calculators.
...92 Plus, or Voyage 200? To use the chi-squared goodness of fit test on a TI-89 family, TI-92 Plus, or Voyage 200 use the Statistics with List Editor App. Using the lists below and a degree of freedom of 2, follow the steps below to calculate and draw the chi-squared goodness of fit test: List 1...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/28011
Solution 26510: Changing the Cursor on the TI-89, TI-89 Titanium, TI-92 Plus and Voyage™ 200
...ou can place the cursor in between items and insert text or numbers. You can see that your calculator cursor is set this way if it matches the cursor appearance below: When the cursor is set to "del" or "delete" mode you can place over items and overwrite text or numbers. You can see that your ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/26510
Solution 13902: Algorithm for the Convert Logbase (>logbase) Function on the TI-89 Titanium and Voyage™ 200 with OS v3.10.
... log2(8)/log2(10), which simplifies to 3/log2(10) ¡Ö 0.90309... (¡Ö log(8)). The ►logbase(n) does not change the value of the argument to which it is applied (log(8,2) is not equal to log(8), so one should not expect the ►logbase(2) conversion to return the value of log(8,2) when applied to log(8...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13902
Solution 13882: Calculating Logs With Different Bases on the TI-89 Titanium and Voyage™ 200 with OS v3.10.
...o bring up the log command. 2) Input [1][0][,][2][)] and press [ENTER] for the result of 3.32193 to be displayed. Please Note: The calculator Exact/Approx mode should be set to APPROXIMATE. Please see the TI-89 Titanium and Voyage 200 guidebooks for additional information. Solution 13882: C...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13882
Solution 13841: Performing Population Standard Deviation on the TI-89 Titanium and Voyage™ 200 with OS v3.10.
...ox of the Data/Matrix Editor. OS v3.10 also includes the stDevPop command on the MATH menu under 6:Statistics option 7:stDevPop. Note: The same would apply to Sy and sy for 2-variable statistics. 1-Variable Previous OS Version OS v3.10 ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13841
Solution 11844: Resetting the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...ng calculators? To reset the TI-89 family, TI-92 family and Voyage 200 graphing calculators, press [2nd] [6] (reads MEM over the key). The [F1] menu appears and contains the following options: • All RAM - Clears all variables and programs from RAM only. This will not delete items from Archive or...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/general-information/11844
Solution 27470: Issues following example Time-Value-of- Money Function in the TI-89 Titanium and Voyage 200 Guidebooks
...(1+temp2/1200)^(-temp1)®tempfunc For tempi,1,5,1 "temp"&exact(string(tempi))®tempstr1 If when(#tempstr1=0,false,false,true) Then If tempi=2 Return approx(nSolve(tempfunc=0,#tempstr1)|#tempstr1>0 and #tempstr1<100) Return approx(nSolve(tempfunc=0,#tempstr1)) EndIf EndFor Return "parameter err...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/27470
Solution 22230: Resolving the Error "Insufficient Memory" When Transferring Data to a TI-89 Family, TI-92 Family, or Voyage™ 200.
...w do I resolve the error "Insufficient Memory" when trying to transfer data to the TI-89 Family, TI-92 Family, or Voyage 200? When trying to transfer Apps or Programs on a TI-89 family, TI-92 family or Voyage 200 and there is not enough RAM memory to transfer the complete data, the "Insufficient ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/22230
Solution 15889: Correcting the Message "ERROR" on the TI-36X Solar.
...ge Base Knowledge Base Search Why is my TI-36X Solar displaying the message "Error" and how can I correct it? When "Error" appears on the display, the calculator will not accept a keyboard entry. Press the [CE/C] to clear the error condition. Press the [CE/C] twice to c...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/troubleshooting-messages-unexpected-results/15889
Solution 12089: Correcting the Error Message "Press I to Install Code" on the TI-89 Family, TI-92 Plus or Voyage™ 200 Graphing Calculators Using the TI Connect™ Software for Windows®.
...or message "Press I to install code" on the TI-89 family, TI-92 Plus or Voyage 200 graphing calculators? The error message, press I to install code, appears on the TI-89 family, TI-92 Plus and Voyage 200 when the unit has lost its operating system. In general, this situation only occurs as the r...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/12089
Solution 12071: Troubleshooting a TI-89 Family, TI-92 Plus, or Voyage 200™ that Only Display Results in Fractional Format.
...calculator? If the TI-89 Family, TI-92 Plus, or Voyage 200 will only display results in fractional form, the mode settings will need to be changed to Approximate, in order to receive answers in decimal form. For a temporary solution, to get the answer in decimal form press [Green Diamond][ENTER]...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/12071
Solution 11870: Using Solve( with Trigonometric Functions Returns Unexpected Results on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ation has an infinite set of solutions by displaying @n1*p. The integer suffix of "@n" increases for successive problems, then wraps back to 1 after 255. "@n" is the units representation of an "arbitrary integer." Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11870
Solution 11591: Correcting the Circular Definition Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...bolic, then all simplification will work as expected. Composition of functions is also commonly studied when graphing y2(y1(x)). Because the graphing application on these calculators is completely numeric, all composition of functions in graphing work as expected. However, the graphing functions ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11591
Solution 22310: Correcting the Error Message Variable is Locked, Protected, or Archived on the TI-89 Family, TI-92 Family and Voyage™ 200.
... from the var-link menu on the TI-89 Family, TI-92 Family and Voyage 200 graphing calculator? The error, Variable is Locked, Protected, or Archived, appears when attempting to delete a locked program, equation, list, etc. from the var-link menu using a TI-89 family, TI-92 family or Voyage 200 ca...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/22310
Solution 12126: Correcting a Non-algebraic Variable in Expression Error on the TI-89 Family and Voyage™ 200 Graphing Calculators.
... calculators? A Non-algebraic variable in expression error is returned by a TI-89 family and Voyage 200 if there is a value stored to a variable that appears in the expression. Refer to the steps outlined below in order to restore the variable to its default state (no value stored): 1) Press [CAT...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/12126
Solution 12047: Cannot Update the Operating System (OS) on a TI-89, TI-92 Plus or Voyage™ 200 with OS Version 2.0 or Below and TI Connect™ Software.
...g a TI-89, TI-92 Plus or Voyage 200 with OS version 2.0 or below, using TI Connect: • Pull 1 AAA battery out of the calculator. • Press and hold the APPs key. • While holding the APPs key, replace the battery and turn the unit on. • Press [ I ]. On the TI-89 press [ 9 ]. • On PC, Click Start >> ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/12047