Solution 12650: Calculating Trigonometric Functions on the TI-81.
...y. 6) Cosine of 30 degrees is equal to (.86602....) in degrees to enter this press the [COS] key and then enter 30. 7) Next press the [ENTER] key. 8) Tangent of 30 degrees is equal to (.57735.....) in degrees to enter this press the [TAN] key and then enter 30. 9) Next press the [ENTER] key. For ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12650
Solution 12645: Graphing a Function on the TI-80 and TI-81.
...can I graph functions using the TI-80 or TI-81? The TI-80 has been discontinued. When upgrading, consider the TI-73 Explorer™. The TI-73 Explorer is completely compatible with curricular materials for upper elementary through lower middle grades, from fractions through pre-algebra. Follow these ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12645
Solution 12217: Locked Variables Are Not Displayed in Open Dialog Box Choices on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculator.
... on a copy of the variable, but the variable itself). To edit locked variables, unlock the variable from either the VAR-LINK menu or use the "Unlock" command. Below is an example of unlocking a variable from the VAR-LINK menu: Below is an example of unlocking a variable using the "Unlock" com...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12217
Solution 11831: Correcting an Address Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...l detail how to correct the Address Error on the TI-89 family, TI-92 family, and Voyage 200 calculators. Please Note: The following procedures will completely reset the calculator. Please, bear in mind that this will erase the memory of the calculator and restore all manufacturer's defaults. ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11831
Solution 14243: Drawing a Pictograph On The TI-73 Explorer™.
... List is broken up by more than seven icons) the calculator will display an INVALID DIM error. Please see the below example data for the pictograph: Compare the distances in kilometers between Dallas, Texas and seven other cities in North America. Use a vertical pictograph to display the results...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14243
Solution 12171: Use of the Angle( Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...phing calculators? The angle( functions returns the angle, list, or matrix of angles of an expression, list or matrix, interpreting each element as a complex number that represent a two-dimensional rectangular coordinate point.The syntax is:angle(expression).angle(list).angle(matrix)Examples:• In...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12171
Solution 12165: The cFactor() function on The TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators.
...the cFactor() function on the TI-89 family, TI-92 family, and Voyage 200 graphing calculators? The cFactor function is located under the MATH/Algebra/Complex menu. The syntax for the cFactor function is cFactor(expression1[,var]) cFactor(list1[,var]) cFactor(matrix1[,var) Note: What is inside t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12165
Solution 12134: Using Strings on the TI-89 Family, TI-92 Family, and Voyage™ 200.
...erform an action. Examples: Disp "The Result is", answer Input "Enter the angle in degrees", angle1 "Enter the angle in degrees" ->str1 Some input commands, such as InputStr, automatically store user input as a string and do not require the user to enter quotation marks. A string cannot be ev...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12134
Solution 14289: Backing Up the Memory of a TI-73 Family Calculator by Saving to Another TI-73 Family Model.
...t TRANSMIT and begin the backup transmission. • To prevent the backup and return to the Link SEND menu, press [2] to select Quit. When the backup is complete, both the sending calculator and the receiving calculator display a confirmation screen. If a transmission error occurs during a backup, t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/14289
Solution 12059: Implicit Partial Differentiation on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...amily, TI-92 family, or Voyage 200 graphing calculators? The latest versions of the Voyage 200 and TI-89 Titanium operating system contain a impdif ( command. This command should be used when computing a implicit partial differentiation. To access the command, press [F3] [Up Arrow] [Enter] on ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12059
Solution 11810: Calculating a Cubic Regression on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
... How do I calculate the cubic regression on the TI-89 Family, TI-92 Plus and Voyage 200? The TI-89 family, TI-92 family, and Voyage 200 allows calculating cubic polynomial regressions for a given set of data. Please refer to the example below. Data for this example: x values: 0,1,2,3 ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11810
Solution 12136: Factoring an Expression on the TI-89 Family and Voyage 200 Graphing Calculators.
... Knowledge Base Search How do I factor an expression on the TI-89 family and Voyage 200 graphing calculator? Use the factor() command, located under the F2:Algebra menu, to factor expressions on the TI-89 family, the TI-92 Family and the Voyage 200. The proper syntax for t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12136
Solution 11756: Finding the Sum, Difference, and Product of Two or More Matrices on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...s Desktop, then select Data/Matrix Editor App and press [ENTER], then press [3]. 2) Set the type to Matrix, the name to "A" and the dimensions to 2 rows and 2 columns. 3) Press [ENTER] twice. 4) Input the above elements for matrix A into the Data/Matrix Editor screen, pressing [ENTER] after inpu...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11756
Solution 12133: Entering a List on the Home Screen using the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...m, [GREEN DIAMOND] [HOME] on the TI-92 family, or [GREEN DIAMOND] [CALC HOME] on the Voyage 200. 2) Press [2nd] [{]. 3) Input the number separated by commas. For instance, the first two values would be entered by pressing [1] [,] [2] [,]. Continue until all 4 values are entered. There should be n...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12133
Solution 11843: Limit() Function Algorithm on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... Search How are limits calculated on the TI-89 Family, TI-92 Family, and Voyage 200 graphing calculators? Limits of indeterminate forms are computed by series expansions, algebraic transformations and repeated use of L'Hopital's rule when all else fails. Limits of determinate forms are ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11843
Solution 11789: Solving Quadratic Equations using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...family, TI-92 family, and Voyage 200 graphing calculators? The following instructions demonstrate how to solve quadratic equations using the solve() command on the TI-89 family, TI-92 family, and Voyage 200 graphing calculators. The syntax of the solve() command is solve(equation,variable), wh...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11789
Solution 12116: Calculating Weighted Mean Using the TI-89 Family, TI-92 Plus and Voyage™ 200 Graphing Calculators.
...ed mean using the TI-89 family, TI-92 Plus and Voyage 200 graphing calculators. Example : Suppose a student's grade in a class is determined as follows: 65% is from the test mean, 25% is from the final exam, and 10% is from homework. If the student's test mean is 87 and the final exam grade is 7...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12116
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 10414: Calculating Linear Regressions on the TI-86.
...IST] to select the lists to use for the regression. • Press [F3] to select Names. Press the function key (F1-F5) that corresponds to xStat, press the comma button, then select yStat. • Press [ENTER] to perform the regression calculation. The calculator will display the form of the equation (y=a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10414
Solution 10410: Algorithm for the Solver Function on the TI-85 and TI-86.
...the function evaluates to about -3E-13 (-12.5 on the graph). However, in the range of about +/- 2E-7 either side of x=-1, the function evaluation becomes erratic, with exact zero evaluations where pixels are blank and evaluations with positive sign at the top of the graph. The width of this e...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10410
Solution 10453: Designing an Ellipse Using the Geometry Section of the TI-92.
...to the ellipse. The point of tangency is *not* the midpoint of the segment. The locus option is under [F4]. To construct this locus, choose the locus command from the menu, select the bisector and press [ENTER], then select point (A) by pressing [ENTER]. • Construct a segment from the cent...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10453
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.
...n integer as an argument in approximate mode on the TI-89 family, TI-92 Plus and Voyage 200? Use the function that needs an integer as an argument in combination with the exact() function to get the desired argument.For example: The checkTmr( function. The function checkTmr takes an integer as an...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12791