Solution 36979: "Unknown device" displays when I connect my TI-84 Plus family graphing calculator to the TI-Connect CE™ software
... are displayed as "Unknown Device" in TI-Connect CE. When TI-84 Plus family devices that have an operating system version less than the supported configuration are connected to the TI-Connect CE software TI Connect CE will display them as an "Unknown device". TI Connect CE only supports 2.55 OS...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/36979
Solution 11749: Factorials of Decimal (0.5) Numbers on Texas Instruments Graphing Calculators.
...e Knowledge Base Search Why do I get an answer when I factor numbers ending in .5 on my graphing calculator? Factorial is defined as: The factorial is computed recursively using the relationship, (n+1)! = (n+1)*n!, until n is reduced to either 0 or -1/2. At this point, ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11749
Solution 30651: Calculating a Median-Median Regression on the TI-83 Plus Family of Graphing Calculators.
...owledge Base Search How do I calculate a Median-Median Regression on the TI-83 Plus family of graphing calculators? Med-Med (median-median) fits the model equation y=ax+b to the data using the median-median line (resistant line) technique, calculating the summary points x1,y1,x2,y2,x3 a...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/30651
Solution 11748: Explanation of r^2 and R^2 on the TI-83 Family or TI-84 Family Graphing Calculator.
...When regression models are executed, a TI-83 family or TI-84 family graphing calculator computes and stores diagnostics values for r (correlation coefficient) and r2 (coefficient of determination) and R2 (coefficient of multiple determination).r2 expresses the proportion of the total variation in...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11748
Solution 34918: Calculating Derivatives on the TI-84 Plus Family of Graphing Calculators.
...hing calculators? The TI-84 Plus family of graphing calculators can only calculate numeric derivatives. Please refer to the example below. Example: Find the numeric derivative of f(x)=x² at x=2 Using MATHPRINT Mode: 1) Press [MATH]. 2) Press [↓] until 8:nDeriv( is selected and press [ENTER]. ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34918
Solution 11893: Saving Text to a TI Graphing Calculator.
...GM] [F2] 2) Select the name of the program to be edited using the function keys (F1-F5), then press [ENTER] Please Note: If > is displayed after the fifth item in a menu group, press [MORE] to display other items. Procedure for the TI-92: Opening a new file in the text editor: 1) Press [APPS]...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11893
Solution 28370: Redeeming Technology Rewards Points For Professional Development Courses
...il address (preferred) or other contact information with the request and points. 3. Register for the selected course on www.education.ti.com when notification of eligibility and a promotion code is received from TI TRP. 4. Enter the promotional code in the registration form (the registration enti...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/28370
Solution 34912: Running an Assembly Program on the TI-84 Plus C Silver Edition, TI-84 Plus and TI-83 Plus.
...Asm(program name). If this procedure does not execute the programs, then consult the individual(s) from whom the program was received or the Readme files from the site where the programs were downloaded. Please see the TI-84 Plus C Silver Edition, TI-84 Plus and TI-83 Plus guidebooks for additi...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34912
Solution 34922: Graphing a Line Using Two Points on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...elect Plot1 for edit. 7) Turn the plot on by pressing [ENTER] when "On" is highlighted. 8) Scroll down to "Type:", highlight the second option on the first row and press [ENTER]. This will setup the stat plot to graph an x-y line. 9) Scroll down to "Xlist:" and press [2nd] [1] to input L1. 10) Sc...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34922
Solution 10443: Sending a Program From a TI-86 to a TI-85 Using a TI Connectivity Cable.
...eps below:• Send the program to the computer using the TI-86 GRAPH LINK software and TI Connectivity cable. • On the TI-86 GRAPH LINK software, Go to File, Open, Locate the name of the program and open it. • Open the TI-85 GRAPH LINK software.• Copy and paste the program's text from the TI-86 GRA...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10443
Solution 12653: Converting Decimal Numbers Into Fractions on the TI-81.
...ecimal numbers into fractions. To have this functionality, please consider upgrading to Texas Instruments latest line of graphing calculators.You can find more information regarding these handhelds on the products page. Solution 12653: Converting Decimal Numbers Into Fractions on the TI-81. ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12653
Solution 13342: Using the Exact() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...mode arithmetic regardless of the Exact/Approx mode setting to return, when possible, the rational-number equivalent of the argument. Note: tol specifies the tolerance for the conversion; the default is set to 0(zero). Refer to the examples provided below. Ex.1 exact(.25) [ENTER] Ex.2 exact...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13342
Solution 13323: Using the RandMat() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...he randMat() function is listed below. randMat(numRows,numColumns) The randMat() function returns a matrix of integers between -9 and 9 of the specified dimension. Reference the example provided below. Ex. Create a random generated matrix with 3 rows and 3 columns. • From the HOME screen pres...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13323
Solution 12650: Calculating Trigonometric Functions on the TI-81.
...Note: The TI-81 has been discontinued. When upgrading, consider the TI-84 Plus CE graphing calculator. It is ideal for algebra, geometry, statistics, finance, and many other classes. The TI-84 Plus CE has an upgradeable operating system, several included Apps, a rechargeable battery and a USB cab...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12650
Solution 13321: Using the Rand() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...I-92 family and Voyage 200 graphing calculators? The syntax for the rand() function is listed below.rand([n])Where n is an integer ¹ 0 • With no specified n, rand() returns the next random number between 0 and 1 in the sequence. Ex. rand(6) may return the result of 5• When n is a positive value, ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13321
Solution 13305: Inserting and Deleting a Row, Column, or Cell in the Data/Matrix Editor on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
... [2nd][F6] and select 1:Insert 3) Select either 2:row or 3:column Please Note: When inserting a row in a list or data variable, the row is undefined. When inserting a row in a matrix variable, the row is filled with zeros. When inserting a column in a data variable, the column is blank. Wh...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13305
Solution 12648: Calculating Linear Regressions on the TI-81.
...lculator will display the form of the equation (y=a+bx) and then list the values for a and b (5.0256 and 1.2564 respectively) and the correlation coefficient (r) .9885.For more information regarding your Texas Instruments graphing calculator, please refer to the guidebooks section. Solution 1264...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12648
Solution 12060: Interpolation Calculations on the TI-89 Family, TI-92 Family, and Voyage™ 200.
...family, TI-92 family, or the Voyage 200 have a built-in interpolation function. However, students, educators, and other users of the TI-89 family may find third-part sources available on the Internet for retrieval of a user-defined interpolation program for the TI-92 family and Voyage 200. Solu...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12060
Solution 13180: Sharing Applications Between the TI-89 Family Graphing Calculators.
...he arrow keys to highlight the desired App and press [F4] to ensure that a Ö (check mark) is displayed next to each App that will be transferred. 4) Finally, press [F3] and select option 1:Send to begin the transfer process. Please see the TI-89 family guidebook for additional information. Solu...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13180
Solution 13062: Solving a System of Equations on the TI-89 Family, TI-92 Plus, and Voyage™ 200 Using the Gauss-Jordan method.
...s-Jordan method. Example: Solve the following system of equations:3X + 5Y = 10-2X + 4Y = 5Solution:The matrix for this example (consisting of the coefficients of the terms in the equations) is given below:bb = [ [3 5 10] [-2 4 5 ]]1. Enter the matrix bb into the Data/Matrix Editor Please note tha...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13062
Solution 14240: Converting Between Fractions and Decimals on the TI-73 Explorer™.
...l equivalent of a decimal does not exist, the calculator returns the same digits. The calculator also only recognizes and converts (if possible) the first ten digits of any decimal. The Decimal Notation mode determines the display of the result. The image below depicts some of the conversion op...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14240
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.
... the graph of the function 2*sin(x):• Graph the function y=2*sin(x).• Press the [F2]• Select 1:ZoomBox• Move the cursor to any corner on the box to define, and press [ENTER]. The cursor changes to a small square, and the screen prompts for 2nd Corner?• Move the cursor to the opposite corner of th...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12177
Solution 14243: Drawing a Pictograph On The TI-73 Explorer™.
...orth America. Use a vertical pictograph to display the results. Create a categorical list called City using the following. Make sure to surround the first list element with quotation marks. This list will be symbolized with a lowercase "c" next to the title of the list: • Toronto • Mexico City ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14243
Solution 11827: Calculating the Determinant of a Matrix Using the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...the determinant of a matrix using the TI-89 family, TI-92 family and Voyage™ 200 graphing calculators? The instructions below will show users how to find the determinant of a matrix using the TI-89 Titanium, TI-92 family and Voyage™ 200. Example: What is the determinate of matrix b? Solution...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11827
Solution 11826: Calculating nth Power and Roots Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...use the carat (^) key, located above the division key. For example, to raise 3 to the 4th power, press [3][^][4][ENTER] for the result of 81. And, to find -22, enter (-2)^2. Roots Taking the nth root of a number is the same as raising the number to the 1/x power. Refer to the examples provided ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11826