Solution 10349: Calculation Method Used by the Polynomial Root Finder on the TI-85 and TI-86.
...The TI-85 polynomial root finder makes use of the built-in eigenvalue solver. The coefficients of the polynomial are used to create what is called a "companion matrix". Basically, the coefficients appear across a row or column (there are variations) and the rest of the matrix is all zeros except ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10349
Solution 10583: Inverse or Reciprocal Function on the TI-86.
...type in the number, press [2nd][EE], and then press [ENTER]. The inverse will be shown as long as the number does not equal 0. If the number, real or complex, equals 0 the ERROR 02 DIV BY ZERO will be returned. To take the inverse of a list, type in the list name, press [2nd][EE], and then press...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10583
Solution 10580: Finding the Area Below a Function Using a TI-86.
... Search How do I find the area below a function using a TI-86? To find the area below a function using a TI-86, the command FnInt or the graphing integral function can be used. The FnInt function, which finds a numerical approximation for a definite integral, use...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10580
Solution 10573: Teacher Support for Australian Educators.
... What is the contact information for support for educators in Australia? Texas Instruments offers teacher support for Australian educators in a wide variety of ways. Professional development, the Workshop Loan Program, teacher support materials and the Volume Purchase Program ensure that tea...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10573
Solution 10410: Algorithm for the Solver Function on the TI-85 and TI-86.
... to getting into the routine described above, the solver attempts through some heuristics to get two "good" end points to start with. The guess provided is one of these, the other depends on a lot of factors, but the solver prefers a sign change if it can find it. The calculator spends some t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10410
Solution 12109: Accuracy Information for the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search What is the computational and graphing accuracy for the TI-89 family, TI-92 family, and Voyage 200 graphing calculators? Computational Accuracy • Floating-poi...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12109
Solution 10409: Activating the Finance or the Advanced Statistics Program on the TI-86.
...owledge Base Search How can I activate the Finance or the Advanced Statistics Program on the TI-86? Texas Instruments no longer directly provides programs for graphing calculators. You may be able to locate the programs using a web search. After downloading and installing the Finance or...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10409
Solution 10453: Designing an Ellipse Using the Geometry Section of the TI-92.
...ariable and press [ENTER] • Construct a circle. (Press [F3] and select '1: Circle' ) • Construct a point (A) on the circle. Construct a point (B) inside the circle • Connect those points with a segment. • Construct the perpendicular bisector (press [F4] [4]) of the segment between points (A) a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10453
Solution 10400: Calculating the Inverse Sine of 2 Using the TI-85.
...built into the TI-85, arcsin(2) returns p/2+1.316...i, which the TI-85 displays as (1.57... , 1.316...). NOTE: The above information is based on the identity ei*y = cos(y)+i*sin(y). Please see the TI-85 guidebook for additional information. Solution 10400: Calculating the Inverse Sine of 2 Usin...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10400
Solution 10399: Differential Equation Solver for the TI-85.
...od used in the TI-85 to solve differential equations is known as an adaptive stepsize Runge-Kutta method.In this method, a proposed step is taken by computing a solution with two separate Runge-Kutta formulas of different order (but which share evaluation points). An error estimate is formed f...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10399
Solution 12791: Using a Function that Needs an Integer as an Argument in Approximate Mode using the TI-89 family, TI-92 Plus and Voyage™ 200.
...ollowing is entered checkTmr(exact(integer)), the calculator will return the expected result.Please see the TI-89 family, TI-92 Plus and Voyage 200 guidebooks for additional information. Solution 12791: Using a Function that Needs an Integer as an Argument in Approximate Mode using the TI-89 fam...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12791
Solution 10427: Finding the Limit of a Function Using the TI-86 Graphing Calculator.
... How do I find the limit of a function using the TI-86? To find the limit of a function on the TI-86, it must first be graphed in the interval comprising the given value the function approaches. Then, use the table feature to display values that surround the given value. In the table setup...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10427
Solution 10392: Transferring Programs or Data Between a TI-82 and TI-83.
... translated to sin(X+5, therefore it is interpreted by the TI-83 as sin(X+5). If the TI-83 receives a variable that it cannot translate, an Err:Invalid is generated by the TI-83 when it tries to execute that variable. For example, if Un-1 is sent from the TI-82 to the TI-83, the TI-83 cannot tra...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10392
Solution 10372: Calculating Numeric Derivatives on the TI-82.
... derivative of an expression on the TI-82.Example:Find the numerical derivative of x2-4X, when x=3.Solution:1) Press [MATH] [8], to paste the nDeriv( command onto the home screen.2) Input the expression x^2-4X. The screen will read:3) After the expression, input [,] [x] [,] [3] [)] (x is the vari...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10372
Solution 11505: Sending Files from a TI-82 or TI-85 to a Macintosh® with the TI-GRAPH LINK 2 or the TI Connect™ Software.
...present on the calculator. So, it is not possible to drag and drop a variable from the calculator connection screen. Please see the TI-GRAPH LINK 2 guidebook for additional information. Solution 11505: Sending Files from a TI-82 or TI-85 to a Macintosh® with the TI-GRAPH LINK 2 or the TI Connect...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11505
Solution 19149: Using Folders on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... How can I use folders to organize variables stored in the memory of a TI-89 family, TI-92 family, or Voyage 200 graphing calculator? Folders provide a convenient way to manage variables by organizing them into related groups. For example, separate folders can be created for different applic...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/19149
Solution 19089: Function Algebra on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... to display the custom menu 3. Press [F2] [6] to select 6:Define f(x) = 4. Input 2x+6 then press [ENTER] - The word "Done" is displayed on the right side of the history area, and the Define instruction is still displayed in the entry line. 5. Use the [Ü] (the backspace key) to erase the "2*x+6"...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/19089
Solution 10416: Calculating the Derivative of a Function Using the TI-85 or TI-86.
... the [F2] key to select nDer (numerical derivative). This will paste nDer( on the HOME screen.• Type in the example function, x^2 + 2x + 4.• Insert a comma by pressing the [,] key.• Type in the variable x by pressing the [x-VAR] key.• Insert a comma by pressing the [,] key.• Type in the number 2 ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10416
Solution 11690: Accessing the Custom Menu on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...89 family, TI-92 family, or Voyage 200 graphing calculator? The custom menu contains menu items of predefined functions and strings of text that are commonly used on the TI-89 family, TI-92 family, or Voyage 200. The default custom menu contains the following, but can be modified. For more i...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11690
Solution 18649: Finding the Length of a Vector Using the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...nter [50,180] and add the closing parenthesis. The screen display should be as follows: Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information. Solution 18649: Finding the Length of a Vector Using the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/18649
Solution 18469: Calculating the Summation of a Geometric Sequence Using the TI-89 Family, TI-92 Family, or Voyage 200™.
...pression, variable, low, high, step) The result of the summation displayed should be 126. Please see the TI-89 family, TI-92 family, or Voyage 200 guidebooks for additional information. Solution 18469: Calculating the Summation of a Geometric Sequence Using the TI-89 Family, TI-92 Family, or Vo...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/18469
Solution 10383: Shading Above or Below a Function on the TI-82.
... Knowledge Base Knowledge Base Search How can I shade above or below a function on the TI-82? Using the shade command, the TI-82 can shade a specific area of the graphing window. This function is accessed by pressing [2nd] [DRAW] [7]. The first two argument...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10383
Solution 11751: Finding Critical Points Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...tion. The critical values for the function f(x)= x^3+x^2-5x-5 are (-5/3,40/27) and (1,-8). Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information. Solution 11751: Finding Critical Points Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calcul...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11751
Solution 10374: X and Y Coordinates Do Not Appear When Tracing a Function on the TI-82 Calculator.
...r Graphing Calculator products Knowledge Base Knowledge Base Search How to display X and Y coordinates when performing function graphing on a TI-82 calculator? When tracing a function, if the TI-82 does not display X and Y coordinates, the CoordOff mode may...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10374
Solution 17214: Solving Second Order Differential Equations on the TI-89 Family, TI-92 Plus and Voyage™ 200 Graphing Calculator.
...(and a few variable coefficient), missing y, missing y', missing x, missing both y' and x. Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information. Solution 17214: Solving Second Order Differential Equations on the TI-89 Family, TI-92 Plus and Voyage™ 200 G...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/17214