Solution 11576: Algorithm Used for Calculating the Sine Regression On the TI-86, TI-83 Family, or TI-84 Plus Family.
...rations was exceeded, meaning that full convergence was not achieved. Note that 3 is the default value for the maximum number of iterations. Hence, many problems will necessitate the user entering a larger number if full convergence is desired. During the design of this algorithm, it was felt tha...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11576
Solution 11749: Factorials of Decimal (0.5) Numbers on Texas Instruments Graphing Calculators.
...f computations provided, without having to invent their own factorial or g function. Since degrees of freedom never go below 1, there is no need for anything smaller than (-1/2)!. Please see the graphing calculator's guidebooks for additional information. Solution 11749: Factorials of Decimal (0...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11749
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.
...with the least number of significant figures. For powers, the rounded result has the same number of significant figures as the base. You can use any combination of addition, subtraction, multiplication, division and raising a value to a power. Multiplication and division are performed first, ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/30190
Solution 34919: Calculating the Present Value of a Perpetuity (Infinite Annuity) on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...present value of a cash flow far enough into the future is going to be approximately $0. This means that futuristically the cash flows no longer add anything to the present value. Therefore, selecting a large number of payments yields a close approximation to a perpetuity. For example, the paymen...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34919
Solution 12650: Calculating Trigonometric Functions on 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 cable to connect t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12650
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.
...n: The new row or column is inserted before the row or column that contains the highlighted cell. In the Data/Matrix Editor: 1) Move the cursor to any cell in the applicable row or column 2) Press [2nd][F6] and select 1:Insert 3) Select either 2:row or 3:column Please Note: When insertin...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13305
Solution 14240: Converting Between Fractions and Decimals on the TI-73 Explorer™.
... Knowledge Base Search Can the TI-73 Explorer convert a decimal answer to a fraction answer? The TI-73 Explorer can convert any fraction to a decimal. However when converting a decimal to a fraction, if a fractional equivalent of a decimal does not exist, the calculator r...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.
...to use the ZoomBox tool on 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...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12177
Solution 12170: Using the "and" Operator on TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... In Bin base mode, entering 0b100101 and 0b100 will return 0b100.3) In Dec base mode, entering 37 and 0b100 will return 4.Integers can be entered in any number base. For a binary or hexadecimal entry, the prefix 0b or 0h must be used.If a decimal integer that is too for a signed, 32-bit binary fo...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.
...ach factor. Include var if factorization is needed with respect to only that variable and if the user is willing to accept irrational expressions in any other variables to increase factorization with respect to var. There might be some incidental factoring with respect to other variables. Please...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12165
Solution 11818: Algebra Problem Identities for 00 using the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...ps the empty set to itself (namely, the empty function). Therefore, 00 = 1. 3. Apply the algebraic notion of an empty product, which makes sense in any semigroup. The empty product is the unit element. When you are multiplying an empty collection of numbers together, it doesn't matter whether th...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11818
Solution 15465: Valid Sequence Functions for Web Plots on the TI-89 Titanium or Voyage™ 200.
... • Must be recursive with only one recursion level. For example u(n-1) but not u(n-2). • Cannot reference n directly. • Cannot reference any other defined sequence on the calculator except itself. After the sequence is plotted, the web may be displayed manually or automatically, depe...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/15465
Solution 12095: Finding Limits with Direction on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...d, please press [F3:Caclulus] and select [3:limit(]. From the left: limit(x/(x-3),x,3,-1) (-1 was arbitrarily chosen to specify the left direction. Any negative number can be used.) The screen will show the - infinity symbol. From the right: limit(x/(x-3),x,3,1) (Choose any positive number.)...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12095
Solution 11813: Using Local Variables in Functions or Programs on the TI-89 Family, TI-92 Plus, and Voyage™ 200.
...hat exists only while a user-defined function is being evaluated or a user-defined program is running. As often as possible, use local variables for any variable that is used only within a program and does not need to be stored after the program stops. For example, in the program segment below t...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11813
Solution 12090: Creating a Box Plot using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...1] [▼] [►] [2] [▼] [ALPHA] [C] [2]. Please note that users with TI-92 family or Voyage 200 graphing calculators may omit pressing [ALPHA] in this or any other step. 9) Press [ENTER]. 10) Press the [◊] [GRAPH] [F2] [9]. Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for ad...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12090
Solution 11795: Using the deSolve() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... The symbol @j, where j is a value between 1 and 255, is used to denote an arbitrary integer. Substitute an integer value for that variable, one of many solutions for the problem will be given. Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information. Soluti...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11795
Solution 11842: Algorithm Used for Symbolic Integration Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...bolic Integration: The Stormy Decade", Communications of the ACM, August 1971, Volume 14, Number 8, pp. 548-559. Antiderivatives are NOT computed by any of the Risch-type algorithms. Definite integrals are determined by subdividing the interval at detected singularities, then for each interval, c...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11842
Solution 12048: Changing the Scale of a Graph in The Geometer's Sketchpad® App for the TI-89 Family, TI-92 Plus and Voyage™ 200 Graphing Calculators.
...-89 Family users: • Press [2nd] [F1] to access the F6 menu. Select 4: Show Grid.• Move the arrow to select point (1,0). (1,0) is just an example and any other point can be used, if preferred.• With the arrow on the selected point, press and hold the [ALPHA] key while pressing any of the 4 arro...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12048
Solution 11869: Performing Unit Conversions On The TI-89 Family,TI-92 Family, and Voyage™ 200 Graphing Calculators.
... menu, select _km • Press [ENTER] If an expression uses a combination of units, it is possible to specify a conversion for some of the units only. Any units for which a conversion is not specified will be displayed according to the defaults. Exception: To convert a temperature value, the tmp...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11869
Solution 11755: Finding the Row Echelon Form of a Matrix Using a TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculator.
... press [3]). 2) Press [►] [2] [▼] [▼] [B] [▼]. 3) Press [ALPHA]. Users with a TI-92 family or Voyage 200 graphing calculator may omit this step or any reference to pressing [2ND] [LOCK]. 4) Press [3] [▼] [3] [ENTER]. 5) Press [ENTER] [5] [ENTER] [(-)] [6] [ENTER] [9] [ENTER]. 6) Press [4] [ENT...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11755
Solution 11865: The isPrime() Algorithm on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...hms take expected time that grows exponentially with the number of digits. For example, the Pollard Rho algorithm would probably take centuries on any current computer to factor the product of two 50-digit primes. In contrast, the is Prime() function would quickly identify the number as compo...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11865
Solution 11753: Finding the Area Between Two Curves on the TI-89 Family, TI-92 Plus, and Voyage™ 200.
... functions.• Press [F5] and choose 5:Intersection.• Follow the prompts from here.• Press [ENTER] twice to select the two curves.• The lower bound is any point to the left of the intersection on the x axis.Use the left and right arrow keys to move the cursor, and Press [ENTER] to place the bound.•...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11753
Solution 10414: Calculating Linear Regressions on the TI-86.
...alue for corr. This is a correlation coefficient, and it needs to be as close as possible to 1 to ensure a good curve fit. 1.0 is a perfect fit, and anything less is an approximation. For example, .999 would be an excellent fit. The final value listed is the number of points that were analyzed to...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.
...for the Solver on the TI-85 and TI-86? The TI-85 root finder or solver is a purely numeric method for finding zeros of a function. It does not use any information other than function evaluations in its search for a root. The basic concept is to work between two "end points" and draw a secant ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10410
Solution 10399: Differential Equation Solver for the TI-85.
...m graph detail, tStep should be approximately (xMax - xMin)/126 if "t" is on the x-axis. There is very little computational cost in interpolating many pixels between adaptive steps, but computing more than one interpolated point per pixel is wasted effort.References:"Numerical Methods A Softw...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10399