Solution 11694: Algorithm Used for Calculating the Inverse of a Matrix on a Texas Instruments Graphing Calculator.
...f A, containing ones down its main diagonal and remaining spaces filled with zeros. Knowing that A * A-1 equals the identity matrix and letting X symbolize A-1, we can follow that A * X = Indentity. Since A is equal to L * U, this means: L * U * X = IndentityLet's say A = [[2,-1,0] [4,3,-3] [...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11694
Solution 11693: Algorithm for Solving Trigonometric Functions (Sine, Cosine and Tangent) on Texas Instruments' Graphing Calculators.
...ough treatment of the minor details one has to deal with in implementing the full algorithms for elementary functions (like binary versus decimal number representations and ranging for general arguments) is in Cody(ref 5). The CORDIC algorithm is a super example of an approach that is quite ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11693
Solution 11783: Performing Vector Calculations in Polar Form on the TI-83 Plus Family of Graphing Calculators.
...ome screen. Example: Add 12∠40° + 30∠67°. 1) Input 12 and press [2nd] [LN] to input the ex command. 2) Input 40 and press [2nd] [^] to input the π symbol. 3) Press the [÷] key 4) Input 180 and press [2nd] [.] to input the i (imaginary i) symbol. 5) Press the [ ) ] key 6) Press the [+] key. Inpu...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11783
Solution 11366:Maximizing a Linear Function with the Inequality Graphing Application on the TI-83 Plus and TI-84 Plus.
...quality Graphing application splash screen is displayed. • Press any key. The Y=Editor screen is displayed. Note that placing the cursor on the = symbol for any Y-variable displays the new relation symbols at the bottom of the screen. Press [ALPHA plus [F1]-[F5] to insert a relation symbol. • P...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11366
Solution 11312: Creating a Pie Chart Using the CellSheet™ App on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... A1:D1. Make sure to include the colon. This specifies the title of each piece of the pie. • Next to Series, input A2:D2. This specifies the actual numbers the pieces of the pie represent. • The next choice is for Number or Percent. Number will show the pie chart in actual numbers, such as 400, 3...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11312
Solution 11759: Graph of the Absolute Value of the Square Root of X Differs on the TI-83 Family, TI-84 Plus C Silver Edition, or TI-84 Plus Family Graphing Calculator and on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
..., TI-84 Plus C Silver Edition, or TI-84 Plus family calculator is in real mode when solving for the absolute value of the square root of a negative number, the message ERR:NONREAL ANS is displayed. This is because an intermediate answer, the square root of a negative number, is imaginary. If the ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11759
Solution 11576: Algorithm Used for Calculating the Sine Regression On the TI-86, TI-83 Family, or TI-84 Plus Family.
... 1,2,...,nwhere, n = length of the x and y lists and a,b,c,d are the SinReg parameters. In addition, optional arguments are allowed for the maximum number of iterations and/or initial guess of the sine functions period. The SinReg problem is therefore to find the a,b,c,d values for the sine formu...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11576
Solution 11752: Calculating Derivatives on the TI-83 Plus Family of Graphing Calculators.
...ss [ENTER]. 3) Press [X,T,θ,n] [x²] [,] [X,T,θ,n] [,] [2] [)] [ENTER]. Additional Note: The TI-83 Plus family of graphing calculators do not have symbolic manipulation capabilities. They cannot find the symbolic derivative of a function. For a list of TI graphing calculators that have the Compu...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11752
Solution 34919: Calculating the Present Value of a Perpetuity (Infinite Annuity) on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...or a specific period of time. Hence, they are called perpetuities or infinite annuities. Since these units do not have a way to specify an infinite number of periods for N, the calculation involves the fact that the present value of a cash flow far enough into the future is going to be approximat...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34919
Solution 34918: Calculating Derivatives on the TI-84 Plus Family of Graphing Calculators.
...press [ENTER]. 3) Press [X,T,θ,n] [x²] [,] [X,T,θ,n] [,] [2] [)] [ENTER]. Please Note: The TI-84 Plus family of graphing calculators do not have symbolic manipulation capabilities and cannot find the symbolic derivative of a function. For a list of TI graphing calculators that have the Compute...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34918
Solution 28370: Redeeming Technology Rewards Points For Professional Development Courses
...e point totals needed for redemption, click here. Process For Redeeming TI TRP Points For Professional Development Courses 1. Submit the required number of points to the TI TRP, indicating the type of course selected (T^3 3-Day Hands-on-Summer TI-Nspire Institute, T^3 International, etc). 2. In...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/28370
Solution 34922: Graphing a Line Using Two Points on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...Data for this example: L1: {3,5} L2: {7,8} 1) Press [STAT] [ENTER] to access the STAT list editor. 2) Input the values 3 and 5 under the L1 list remembering to press [ENTER] after each value. 3) Input the values 7 and 8 under the L2 list. 4) Press [2nd] [MODE] to QUIT and return to the home scre...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34922
Solution 13344: Calculating lcm() (Least Common Multiple) of Two Arguments on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...o fractions is the LCM of their numerators divided by the greatest common divisor (GCD) of their denominators. The LCM of fractional floating-point numbers is their product. For two lists or matrices, lcm() returns the LCMs of the corresponding elements. The proper syntaxes for the lcm() function...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13344
Solution 13342: Using the Exact() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...ction ensures that the calculator uses the Exact 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 provi...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13342
Solution 13326: Using the RandSeed Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...ndSeed function can be found under the Math menu and under Probability. The proper syntax for using the RandSeed function is listed below: RandSeed number The RandSeed function sets the seed value for the random-number generator functions rand(), randMat(), randNorm() and randPoly()) to number. I...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13326
Solution 10431: Finding the Zero, Minimum, or Maximum of a Function on the TI-85 or TI-86.
... Left Bound? prompt is displayed. 2) Move the cursor onto the function for which the root is being computed by pressing the up or down arrow. The number of the graph selected will be display in the top right corner of the screen. 3) Specify the left bound for x by either moving the trace curs...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10431
Solution 13321: Using the Rand() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...lators? 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, rand(n) returns a random integer in the i...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13321
Solution 10424: Degree, Minutes, Seconds (DMS) Conversions with the TI-85 or TI-86.
...nowledge Base Search How do I perform Degree, Minutes, Seconds (DMS) conversions with the TI-85 and TI-86? The TI-85 and TI-86 recognize a number as DMS when that number is entered using a single quote after each value. For example, 15'12'8' would be interpreted as 15 degrees, 12 minut...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10424
Solution 12184: Algorithm for the Exec Command on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...ession1] [, expression2]...The Exec function executes a string consisting of a series of Motorola 68000 op-codes. These codes act as a form of an assembly-language program. If needed, the optional expressions enable users to pass one or more arguments to the program.It is recommended that a backu...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12184
Solution 14243: Drawing a Pictograph On The TI-73 Explorer™.
...s. 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 • Los Angeles • Washington • Denver • Kansas City • Vancouver...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.
...ulators? 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 Degree mo...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12171
Solution 11826: Calculating nth Power and Roots Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...e instructions will detail how to perform the nth power and root computations on the TI-89 family, TI-92 family, and Voyage 200. Powers To raise a number by an exponent, use the carat (^) key, located above the division key. For example, to raise 3 to the 4th power, press [3][^][4][ENTER] for th...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11826
Solution 12170: Using the "and" Operator on TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...d with integers, the and operator compares them bit-by-bit using an and operation. Internally, both integers are converted to signed, 32-bit binary numbers. When corresponding bits are compared, the result is 1 if both bits are 1: otherwise, the result is 0. The returned value represents the bit ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12170
Solution 12165: The cFactor() function on The TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators.
...ariables over a common denominator. expression1 is factored as much as possible toward linear rational factors even if this introduces new non-real numbers. This alternative is better to use when doing factorization with respect to more than one variable. Examples: 1. cFactor ( a ^ 3 * x ^ 2 + ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12165
Solution 15468: Unlocking a Program on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...through the VAR-LINK screen and highlight the program that needs to be unlocked.• With the name of the program highlighted, press [F1] [7].The lock symbol should now be removed from the name of the program.Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional informat...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/15468