Solution 11576: Algorithm Used for Calculating the Sine Regression On the TI-86, TI-83 Family, or TI-84 Plus Family.
...at best fit the x,y data lists. More formally, best is defined to be the 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 se...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11576
Solution 34420: Performing T-Test Computations Using the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... If not, move the cursor next to List: and press [2nd] [1]. 6) Highlight >m0 and press [ENTER]. This means the mu (m) is greater than the alternate hypothesis (m0). 7) Scroll down to Calculate and press [ENTER]. The T-Test returns a test statistic of 2.1009. Please see the TI-83 Plus and TI-84...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34420
Solution 36979: "Unknown device" displays when I connect my TI-84 Plus family graphing calculator to the TI-Connect CE™ software
...3 or lower are displayed as "Unknown Device" in TI-Connect CE. When TI-84 Plus family devices that have an operating system version less than the supported configuration are connected to the TI-Connect CE software TI Connect CE will display them as an "Unknown device". TI Connect CE only suppor...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/36979
Solution 36978: Cannot transfer .ZIP files to and from the TI-84 Plus CE™ using the TI-Connect CE™ software
... Why am I unable to transfer .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 ...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.
...rial is defined as: The factorial is computed recursively using the relationship, (n+1)! = (n+1)*n!, until n is reduced to either 0 or -1/2. At this point, the definitions, 0! = 1 or (-1/2)! = (p), are used to complete the calculation. Hence: n! = n*(n-1)*(n-2)*...*2*1, if n is an integer >= 0...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11749
Solution 30651: Calculating a Median-Median Regression on the TI-83 Plus Family of Graphing Calculators.
... Med-Med (median-median) fits the model equation y=ax+b to the data using the median-median line (resistant line) technique, calculating the summary points x1,y1,x2,y2,x3 and y3. Med-Med displays values for a (Slope) and b (y-intercept). The following example will demonstrate how to calculate a...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/30651
Solution 11748: Explanation of r^2 and R^2 on the TI-83 Family or TI-84 Family Graphing Calculator.
...stics values for r (correlation coefficient) and r2 (coefficient of determination) and R2 (coefficient of multiple determination).r2 expresses the proportion of the total variation in the values of the variable Y that can be accounted for or explained by a linear relationship with the values of t...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11748
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.
...of error. The precision of the measurement determines which digits (known as significant digits or significant figures) should be included when you report measurement results. However, you will often encounter measurement values reported with arbitrary precision. The Sig-Fig Calculator tool lets ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/30190
Solution 13680: Finding Proper Fractions and Common Denominators on the TI-89, TI-89 Titanium, TI-92 Family or Voyage™ 200 Graphing Calculators.
...n [,var]) - the variable is with respect to a proper fraction. comDenom (expression [,var]) - the var is for common denominators that collect similar powers of this variable. Example: Find the proper fraction for (x^4-2x^2+x)/(2x^2+x+4) then transform the answer into a ratio of a fully expanded n...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13680
Solution 13344: Calculating lcm() (Least Common Multiple) of Two Arguments on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...CM of two 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() ...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.
...1[,tol]) The exact() function 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). Re...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13342
Solution 10442: Executing TI-Basic and Assembly (ASM) Programs on the TI-86.
... one of the [F1] through [F5] keys depending on the number of programs stored on the calculator. 2) Locate the program to execute and press the corresponding key followed by [ENTER]. The program should now be running. If the program is written in the assembly language type (ASM), follow these st...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10442
Solution 13326: Using the RandSeed Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...sted below: RandSeed number The RandSeed function sets the seed value for the random-number generator functions rand(), randMat(), randNorm() and randPoly()) to number. If number is = 0, the calculator sets the seeds to the factory for the random-number generator.If number is ¹ 0, it is used to g...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13326
Solution 10425: Finding the Absolute Value or Argument of a Complex Number on the TI-86.
...d the absolute value (argument) of an imaginary number. Example: Find the absolute value of 53-22i Solution: • Press [2nd][MODE] • Scroll down to PolarC and press [ENTER] • Press [2nd][MATH] • Press [F1] • Press [F5] • Input after abs (53, -22) and press [ENTER] The answer is 57.384667 Plea...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10425
Solution 13321: Using the Rand() Function on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...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 interval [1,n]. Ex. rand(6) may return the result of 5• When n is a negative value, rand(n)...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/13321
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.
... Why are locked variables not displayed in open dialog box choices on the TI-89 family, TI-92 family, and Voyage 200 graphing calculators? The purpose of locked variables on the TI-89 family, TI-92 family and Voyage 200 is to keep the variable from being edited. All of the editors (Program, G...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12217
Solution 14240: Converting Between Fractions and Decimals on the TI-73 Explorer™.
...if a fractional equivalent of a decimal does not exist, the calculator returns the same digits. The calculator also only recognizes and converts (if possible) the first ten digits of any decimal. The Decimal Notation mode determines the display of the result. The image below depicts some of the...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.
...orner 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 the opposite corner of the zoom box. As the cursor moves, the box stretches.• When the zooming area is outlined, press [ENTER].2. Zooming In and Out on a...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12177
Solution 12171: Use of the Angle( Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...rix 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 mode,angle(0+2i)[ENTER] will return 90.• In Radian mode,angle(1...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12171
Solution 12170: Using the "and" Operator on TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...he 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 results, and is di...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12170
Solution 11822: Algorithm Used for the propFrac() Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...at is algorithm used by the propFrac() function on the TI-89 family, TI-92 family, and Voyage 200 graphing calculators? The propFrac() function uses polynomial division with remainder to determine the quotient polynomial and the numerator of the resulting fraction. For additional information on ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11822
Solution 12165: The cFactor() function on The TI-89 Family, TI-92 Plus, and Voyage™ 200 Graphing Calculators.
...cFactor(expression1) returns the expression1 factored with respect to all its variables 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 wi...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12165
Solution 11819: Algorithm for Solving Systems of Equations on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...200 graphing calculators? solve() and cSolve() functions return real or complex solutions of linear or nonlinear systems of equations. For linear or polynomial systems, the Gaussian or Groebner elimination method is used to seek all solutions. Otherwise, a damped-Newton/steepest-descent method i...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11819
Solution 11815: Finding a Maximum or Minimum of a Function on a TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculator.
...6]. 3) Press [◊] [GRAPH]. 4) Press [F5] [4]. 5) Specify the lower bound for xc by either moving the trace cursor to the left of the vertex (maximum point), or by directly inputting a value. 6) Press [ENTER]. 7) Next, a prompt for "Upper Bound?" is displayed. 8) Specify the upper bound for xc b...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11815
Solution 12096: Graphing a Step Function on the TI-89 Family, TI-92 Family, or Voyage™ 200 Graphing Calculators.
...nd press [ENTER]. 6) Graph the function by pressing [GREEN DIAMOND] [R] (Use [GREEN DIAMOND] [F3] on the TI-89 Family). Please Note: If the graphed points appear connected, go back into the Y= Editor screen, highlight the int(x) function by using the directional arrows on the keyboard, Press [F...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12096