Solution 11576: Algorithm Used for Calculating the Sine Regression On the TI-86, TI-83 Family, or TI-84 Plus Family.
...values that makes the following sum of the square error function as small as possible.J = sum[ (a*sin(b*x(k) + c) + d - y(k))^2 ], for k = 1,2,...,nSolving this equation for the a,b,c,d parameters that minimize J involves setting the partial derivatives of J with respect to the parameters to zero...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11576
Solution 36983: Problems when sending invalid files accompanied with valid files at one time in TI-Connect CE™ on Windows®.
Solution 36983: Problems when sending invalid files accompanied with valid files at one time in TI-Connect CE™ on Windows®. Solution 36983: Problems when sending invalid files accompanied with valid files at one time in TI-Connect CE™ on Windows®. global Solution 36983: Problems when send...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/36983
Solution 36978: Cannot transfer .ZIP files to and from the TI-84 Plus CE™ using the TI-Connect CE™ software
...nsfer .ZIP files to and from the TI-84 Plus CE™ using the TI-Connect CE™ software? Texas Instruments is aware of the reported problem and may be resolved at the earliest in a future release. The current workaround is to unzip these files to a specific location such as your desktop and then trans...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/36978
Solution 11749: Factorials of Decimal (0.5) Numbers on Texas Instruments Graphing Calculators.
...teger >= 0 n! is an error otherwise. The reason 1/2 factorials are allowed: Computation of the pdf's and cdf's for the t, F and c2 distributions involve the use of the g function. When one is dealing with a single degree of freedom for one of these functions, one must compute g(1/2), which is eq...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11749
Solution 21911: nDeriv and Derivative Commands Use Different Algorithms to Compute Answers.
...answers? If so, which answer is more accurate? The nDeriv() and Derivative commands are based on different algorithms. While the Derivative command solves for the derivative of the function exactly, the nDeriv() command uses the following formula: (f(var+step) - f(var-step))/(2*step) Please Note:...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/21911
Solution 30190: Using The Significant Numbers Calculator From The Science Tools App on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...se Knowledge Base Search How do I use the Significant Numbers calculator from the Science Tools App? Calculations that involve measurements include a certain amount of error. The precision of the measurement determines which digits (known as significant digits or signif...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/30190
Solution 10431: Finding the Zero, Minimum, or Maximum of a Function on the TI-85 or TI-86.
...uess an x value near the root between the left bound and the right bound by either moving the cursor or inputting a value and pressing [ENTER]. 6) Solve for the ROOT (zero) by pressing [ENTER]. The same steps can be used when calculating the FMIN and FMAX. Make sure to select FMIN or FMAX in th...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10431
Solution 11832: Correcting an "Undefined Variable" Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...a statistics variable when a statistical analysis has not been performed. If the variable is defined, then refer to the following instructions to resolve this error. 1) Press [2nd] [6] (MEM) [F1] [ENTER]. 2) Select 2:Default. 3) Press [ENTER] and Defaults Set is displayed. 4) Press [ENTER]. On...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11832
Solution 11830: Correcting a Window Variables Domain Error on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...culators? The Window variables domain error occurs when the minimum value for x or y is larger than the maximum value. Edit the window values to resolve this error. Refer to the instructions below. • Press [♦][WINDOW] • Input the following values: xmin = -10 xmax = 10 xscl = 1 ymin = -10 ymax...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11830
Solution 12170: Using the "and" Operator on TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...2-bit binary form is entered, a symmetric modulo operation is used to bring the value into the appropriate range.The and operator is also used when solving for system of equations and to input piecewise functions with more than one restrictions.Examples:1) Solve(x+y=3 and x-y=2, {x,y})2) y1(x)= x...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12170
Solution 11820: Algorithm Used for the cZeros() (Complex Zeros) Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...l Gröbner/Buchberger elimination method to attempt to determine all complex zeros.. The cZeros(expr, var) function does this by computing exp►list(cSolve(expression = 0, var, var). Please refer to the example provided below. cZeros(x5+4x4+5x3-6x-3, x) • Press [2ND] [MATH]. • Select [9: Algebra] [...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11820
Solution 15346: Graphing 2D Implicit Functions on the TI-89 Titanium, TI-92 Plus, and Voyage™ 200.
...x), where y is unique for each x value can be graphed in this mode. However, by using 3D graphing mode, it is possible to graph implicit 2D without solving for y or x. To be able to graph these functions, users will need to rearrange the implicit form as an equation set to zero f(x,y) - g(x,y)=0....https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/15346
Solution 12058: Fractions with the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... on the TI-89 family, TI-92 family, and Voyage 200 graphing calculators? The TI-89 family, TI-92 Family, and Voyage 200 will perform calculations involving fractions. However, the unit returns fractional results in the form of an improper fraction. Use propFrac() function to return an improper fr...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12058
Solution 12059: Implicit Partial Differentiation on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
... used when computing a implicit partial differentiation. To access the command, press [F3] [Up Arrow] [Enter] on the homescreen. For example, to solve the equation x^2+y^2=0, enter impdif(x^2+y^2=0, x, y) and press [ENTER]. If you are using the TI-89, the impdif( command is not built in the...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12059
Solution 12046: Calculating Two-Variable Statistics on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... calculations using the TI-89 family, TI-92 family, and Voyage 200. Data for this Example: x values: {5, 9, 7, 11} y values: {12, 15, 14, 17} To Solve: 1) Press [APPS] use the arrows to select [Data/Matrix Editor] and press [ENTER]. 2) Choose [3: New] then press [Enter]. 3) Press [Down Arrow]...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12046
Solution 10586: Temperature Unit R on the TI-85, TI-86, TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...? R is used to denote Rankine, which is an absolute temperature measurement in English units. Rankine is to Fahrenheit as Kelvin is to Celsius. 1 Rankine= -458.67° Fahrenheit Please see the appropriate model of graphing calculator guidebooks for additional information. ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10586
Solution 12116: Calculating Weighted Mean Using the TI-89 Family, TI-92 Plus and Voyage™ 200 Graphing Calculators.
...0 graphing calculator? Weighted mean is the mean of a data set whose entries have varying weights. This is a one variable statistical calculation involving 2 lists. Refer to the example below for calculating weighted mean using the TI-89 family, TI-92 Plus and Voyage 200 graphing calculators. Ex...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.
...lation method is 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...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10349
Solution 10449: Using the Interpolate Editor on the TI-85 and TI-86.
...s [ENTER]. • At x2=, input -1 and press [ENTER]. • At y2=, input -2 and press [ENTER]. • At x=, input 7 and press [ENTER]. • At y=, press [F5] to solve for the y value. The calculator should display 14 as the solution. Please see the TI-85 and TI-86 guidebooks for additional information. Solu...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10449
Solution 10392: Transferring Programs or Data Between a TI-82 and TI-83.
...example, when transmitting Un from a TI-82 to a TI-83, it is automatically translated to u when it reaches the TI-83. Some differences cannot be resolved by the TI-83. The program or data must be edited to account for the differences. The TI-83 adds an open parenthesis to all prefix functions an...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10392
Solution 10372: Calculating Numeric Derivatives on the TI-82.
Solution 10372: Calculating Numeric Derivatives on the TI-82. Solution 10372: Calculating Numeric Derivatives on the TI-82. global Solution 10372: Calculating Numeric Derivatives on the TI-82. website Ho...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10372
Solution 19149: Using Folders on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...a Folder from the Home Screen: Before deleting a folder, all the variables stored in that folder must be deleted. • To delete a variable, enter the DelVar command. The syntax for this command is: DelVar var1 [, var2] [, var3] ... • To delete an empty folder, enter the DelFold command. The...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/19149
Solution 11595: Displaying of a Numeric Answer Instead of a Symbolic Answer when Using the Integration Function on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...at variable or use a different variable in the calculation. Variables can be deleted by pressing [F6][ENTER] from the home screen or by using the DelVar command. The calculator resorted to a numerical approach to find the solution for the problem. This could happen when the problem being sol...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11595
Solution 10416: Calculating the Derivative of a Function Using the TI-85 or TI-86.
... by pressing the [)] key. The HOME screen should show nDer(x^2+2x+4,x,2). • Press [ENTER]. The HOME screen should show 6. The TI-85 and TI-86 only solve derivatives numerically and will not give the symbolic answer of 2x+2. Instead, the graphing calculator substitutes 2 (for x) into the answer...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10416
Solution 11751: Finding Critical Points Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... where the derivative is equal to zero, reach a local minimum, or reach a local maximum. The following illustrates how to use the differentiate and solve functions to find critical points. Example: Find the critical points using the solver and differentiation commands on the home screen for the f...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11751