Solution 10414: Calculating Linear Regressions on the TI-86.
... is a correlation coefficient, and it needs to be as close as possible to 1 to ensure a good curve fit. 1.0 is a perfect fit, and anything less is an approximation. For example, .999 would be an excellent fit. The final value listed is the number of points that were analyzed to generate the equat...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10414
Solution 10409: Activating the Finance or the Advanced Statistics Program on the TI-86.
...hing calculators. You may be able to locate the programs using a web search. After downloading and installing the Finance or the Advanced Statistics application on the TI-86, the program must be activated before it becomes operational. Follow the procedure below to activate the application: • ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10409
Solution 10437: Performing Fraction Calculations on the TI-85 or TI-86.
... [¸], and input 42) Press the [+] key 3) Input 7, press [¸], and input 54) Press the [2nd] [MATH] [F5] [MORE] 5) Select [F1] (the convert-to-fraction function)6) Press the [ENTER] keyThe result displayed should be 43/20.Example: (25_4/7) - 9/16 1) Press [(], input 25, and press [+]2) Input 4, pre...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10437
Solution 23550: Performing Laplace and Inverse Laplace Transformations on the TI-89 Family, TI-92 Plus, Voyage™ 200 Graphing Calculators.
...Instruments graphing calculators do not have a built in function to perform laplace or inverse laplace transformations. However, with the addition of applications such as ME*Pro (designed for mechanical engineering) or EE*Pro (designed for electrical engineering) one can add this functionality. T...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/23550
Solution 19149: Using Folders on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...ders provide a convenient way to manage variables by organizing them into related groups. For example, separate folders can be created for different applications (Math, Text Editor, etc.) or classes. The TI-89 family, TI-92 family, and Voyage 200 calculators have one built-in folder named MAIN, ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/19149
Solution 19009: Calculating the Number of Days Between Dates on the TI-89 Family, TI-92 Family and Voyage™ 200.
...the number of days between two specific dates using the TI-89 family, TI-92 family or Voyage 200 graphing calculator. You must first have the FINANCE application installed. Example: A loan is made on January 1, 2006, but the first payment is deferred until March 30, 2006. How many days does the l...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/19009
Solution 11739: Displaying Radicals and Imaginary Numbers in the Solutions Using the TI-89 Family, TI-92 Plus and Voyage™ 200.
...phing Calculator products Knowledge Base Knowledge Base Search How do I get radicals and imaginary numbers to appear in my solutions using the TI-89 family, TI-92 Plus and Voyage 200? Due to the built-in Computer Algebra System or CAS, the TI-89 family, TI-...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11739
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 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 10403: Symbolic Manipulation Capabilities of the TI-85 when Computing Derivatives.
...sider the TI-89 Titanium or the TI-Nspire CX CAS. The TI-89 Titanium can be easily customized by adding new functionality through calculator software applications (Apps). Like the TI-85, the TI-89 Titanium is ideal for advanced mathematics classes like calculus, engineering, and differential equa...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10403
Solution 10587: Differences Between the TI-86 and the TI-89 Family Graphing Calculators.
...tions Solver. Please Note: These features can be added to a TI-89 family calculator with the Polynomial Root Finder and Simultaneous Equation Solver Apps. On the other hand, the TI-89 family has includes important functions that the TI-86 does not have: • Flash technology for Electronic upgrade...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/general-information/10587
Solution 10465: Simplifications Running Slow on the TI-92 Family
...e quite large despite modest inputs and final results. If a problem is taking an unacceptable amount of time: • Try using a different mode, such as APPROXIMATE versus EXACT • Try using an appropriate alternate function, such as nSolve() versus solve() or nInt() versus integral() • Try solving a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/general-information/10465
Solution 10939: Calculator Options for Individuals with Visual Impairments or Low Vision.
...r many of the popular functions of the TI-84 Plus CE calculator using their computer’s keyboard, or a connected calculator with the included SmartPad app* to control the online calculator! Some popular features that are now enabled for text-to-speech include: performing calculations ent...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/general-information/10939
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 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 29030: Input is Returned as the Solution After Pressing the [enter] Key When Using the TI-36X Pro Scientific Calculator.
...h as: √11 is displayed as √112π is displayed as 2π1⁄8 is displayed as 1⁄8To make the TI-36X Pro scientific calculator display solutions in decimal or approximate form, the "toggle" key or [◄►≈] key must be used.Please Note: The [◄►≈] key is located directly below the [+] key.So, if the user input...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/29030
Preparing a TI calculator for the International Baccalaureate (IB) exam or IB Diploma Programme Maths exams
...ome | TI-83 Plus and TI-84 Plus family of products Knowledge Base Knowledge Base Search Certain TI calculator apps are permitted for use on the IB exam. Since Press-to-Test mode on the TI-84 Plus family of calculators restricts all apps and programs, manua...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/40391
Solution 34620: Finding the Discriminant of a Quadratic Equation on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...re are no roots at all. Example: Find the discriminant of the equation x2+6x-5=0 1) Press [1] [sto→] [alpha] [math] [alpha] [.] [6] [sto→] [alpha] [apps] [alpha] [.] [ (-) ] [5] [sto→] [alpha] [prgm] [enter] 2) Press [alpha] [apps] [x2] [-] [4] [*] [alpha] [math] [*] [alpha] [prgm] [enter] t...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34620
Solution 10687: Differences in the TI-30X and TI-30Xa.
...constant. As requested by educators, it has a [k] key that will turn on the [=] key to be used as a constant. When the [k] key is selected a [k] will appear in the screen and then the [=] key will act as a constant. Another minor change is the way in which the permutation and combination functio...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10687
Solution 34597: Shortcuts for Working with Menus on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...rs, below 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, ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34597
Solution 10702: Unexpected Results When Sin(Pi) Does Not Return Zero on the TI-68.
... Knowledge Base Search Why does the TI-68 not give zero when calculating the sin(pi)? The answer displayed when calculating p radians is an approximation of zero. When solving trigonometric functions, very sophisticated algorithms are used to calculate the most accurate answer possible....https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10702
Solution 34733: Performing Degrees, Minutes, Seconds (DMS) Conversions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...y pressing [MODE], scrolling to DEGREE and pressing [ENTER]. Press [2nd] [MODE] to QUIT and return to the home screen. • Input 15.375. • Press [2nd] [APPS] to access the ANGLE menu, then press the [4] key to select the ►DMS function (convert to degrees, minutes, seconds). • Press [ENTER] to ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34733
Solution 34841:Troubleshooting the TI-83 Plus and TI-84 Plus Family of Graphing Calculators Requesting a Password.
...pictures, functions, lists, etc. This procedure may also delete all items stored in the FLASH ROM of the graphing calculator. This includes all FLASH apps (pre-loaded or otherwise) as well as appvars. For the TI-83 Plus and TI-84 Plus: • Remove 1 AAA battery. • Press and hold down the [DEL] key ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34841