Solution 34878: Explanation of r^2 and R^2 on the TI-84 Plus C Silver Edition Graphing Calculator.
...tion) 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 the random variable X. Thus, a correlation of 0.6 means that 0.36 or 36% or t...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/34878
Solution 15889: Correcting the Message "ERROR" on the TI-36X Solar.
... Why is my TI-36X Solar displaying the message "Error" and how can I correct it? When "Error" appears on the display, the calculator will not accept a keyboard entry. Press the [CE/C] to clear the error condition. Press the [CE/C] twice to clear the condition and all pending operations. Th...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/troubleshooting-messages-unexpected-results/15889
Solution 18209: Using the Hyperbolic Functions on the TI-30X IIS/B and TI-30XS MultiView™.
...IS/B and TI-30XS MultiView? Hyperbolic functions are analogs of regular trig functions, or better known as circular functions. Press [2nd] [HYP] to access the hyperbolic function (sinh, cosh, tanh) of the trig function to be used. Hyperbolic calculations are not affected by the mode of the calcu...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/18209
Solution 18729: Performing Metric Conversions on the TI-36X II.
...metric conversions on the TI-36X II? The TI-36X II has a menu with 20 conversions from the metric system into the English system and vice versa. To access this menu press [Conver] and scroll to the selected conversion and press [ENTER]. To reverse the conversion press [2nd] while the selected un...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/18729
Solution 11870: Using Solve( with Trigonometric Functions Returns Unexpected Results on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...amily, and Voyage 200 are showing that this equation has an infinite set of solutions by displaying @n1*p. The integer suffix of "@n" increases for successive problems, then wraps back to 1 after 255. "@n" is the units representation of an "arbitrary integer." Please see the TI-89 family, TI-92 f...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11870
Solution 10419: Correcting ERROR 20 GRAPH WINDOW on the TI-86.
... Knowledge Base Knowledge Base Search How can I correct ERROR 20 GRAPH WINDOW on the TI-86? The ERROR 20 GRAPH WINDOW occurs when the minimum value for x or y is larger than the maximum value. Edit the window values to resolve this error: 1) Press [GRAPH] [F2] and i...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/10419
Solution 30130: When Using Symbolic Pi, Mixed Number Conversions are Improperly Displayed on the TI-36X Pro and TI-30X Pro MultiView™ Calculators.
...the interpretation of that result, is not correct. Once you do this, any other mixed fractions that include pi calculations you attempt to do will inaccurately display. Sample problem: Area of a Circle: Not all screens are shown. • Enter a calculation with Pi • Toggle to fraction result. Th...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/30130
Solution 37335: Troubleshooting a TI-89 family, TI-92 family or Voyage 200 Graphing Handheld That Will Not Turn On or Function Properly.
...tton located on the back is not stuck down below the bottom case. Remove all AAA batteries (AA batteries on the TI-92 Family) and reinsert them according to the polarity (+ and -) diagrams: TI-89, TI-89 Titanium: upside down, then right side up, then upside-down, then right side up T...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/37335
Solution 37336: Troubleshooting a TI-73 Family, TI-80, TI-81, TI-82, TI-83, TI-85, TI-85 and TI-86 Graphing Calculator That Will Not Turn On or Function Properly.
...applications, programs, and data. If at all possible please create a backup using TI Connect™ first. Remove all AAA batteries and reinsert them according to the polarity (+ and -) diagrams. Batteries are installed upside down, then right side up, then upside-down, then right side up, which m...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/37336
Solution 40317: TI-30XS MultiView and TI-34 MultiView Scientific calculator battery information
...tant: When replacing the battery, avoid any contact with the other components of the calculator. Dispose of the dead battery immediately and in accordance with local regulations. Battery precautions Do not leave batteries within the reach of children. Do not mix new and used batt...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/40317
Solution 34618: Using the Sum Function on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...g calculators? The sum function is used to find the sum of the elements in a list. The syntax is sum(list[,start, end]). The optional arguments and accompanying commas are enclosed in brackets. If included, it returns the sum of the elements of the list from start to end. Example: Find the sum ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34618
Solution 34597: Shortcuts for Working with Menus on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...ATALOG, pressing the [APPS] key will jump the user to the "B" section of the CATALOG. • Use the number keys printed in front of certain functions to access them quickly rather than scrolling down to the function, highlighting it, and pressing [ENTER]. For example, try accessing the convert to fra...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34597
Solution 10696: Replacing The Battery in a TI-36X II .
...y internal parts.3) Remove battery, using a small Phillips screwdriver if necessary; replace the old battery with the new battery. Install battery according to polarity (+ and -) diagrams.Caution: Avoid contact with other TI-36X II components while changing the battery.If necessary, press ON a...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10696
Solution 34731: Using the Mean() Function on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
.... If a freqlist is not specified in the mean() function, the default value for freqlist is 1. Each freqlist element counts the number of consecutive occurrences of the corresponding element in the list. Refer to the examples provided below. Example: Find the mean of {1,2,3,4} 1) From the main sc...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34731
Solution 34733: Performing Degrees, Minutes, Seconds (DMS) Conversions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... [MODE], scrolling to DEGREE and pressing [ENTER]. Press [2nd] [MODE] to QUIT and return to the home screen. • Input 15.375. • Press [2nd] [APPS] to access the ANGLE menu, then press the [4] key to select the ►DMS function (convert to degrees, minutes, seconds). • Press [ENTER] to complete t...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34733
Solution 12288: Inverse Function on the TI-34 II Explorer Plus™.
...rer Plus? On the TI-34 II Explorer Plus calculator, the [x-1] key is used to calculate the inverse (or reciprocal) of a value. The [x-1] function is accessed by pressing [2nd] [EE]. Please refer to the example provided below. Example: Find the inverse of 3. 1) Press [3] [2nd] [EE] [=].The display...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12288
Solution 12301: Green Letter Key Labels Represent Physical Constants on the TI-36X Solar Scientific Calculator.
...cal constants) on the TI-36X Solar used? The green letters on the TI-36X Solar indicate the value of a physical constant. The physical constants are accessed using the [CONST] key. For example, to display the constant for the speed of light (c), press [3rd] [CONST] [c]. The screen will show 29979...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12301
Solution 34834: Typing Text Labels on Graph Screens on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...on writes text on graphs beginning at pixel (row, column), where 0£ row £57 and 0£ column £94. The function is located in the DRAW menu which can be accessed by pressing [2ND] [PRGM]. The syntax for the text() function is: text(row, column, text1, text2,…) Please refer to the example provided b...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34834
Solution 34814: Correcting a Data Type Error when Attaching a Distribution Formula to a List on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...nto the L1 list. L2=normalcdf( -1E99, 200, L1*.9, L1*.9*.1) Some of the distribution functions, such as Normalpdf and Normalcdf, are not designed to accept lists as valid parameters. These two functions are designed to only accept floating numbers or integers. The same issue can easily be recrea...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34814
Solution 34592: Calculating Logs of Bases Other Than 10 on the TI-84 Plus Family of Graphing Calculators.
...n the TI-84 Plus family of graphing calculators. Please Note: The TI-84 Plus and TI-84 Plus Silver Edition require Operating System (OS) v 2.55MP to access the logbase function below. To verify what OS is installed press [2nd] followed by [+] then in the menu that appears select [1:About]. If you...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34592
Solution 34779: Correcting a Domain Error When Calculating a 1-Prop Z-Interval on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...or on the TI-83 Plus and TI-84 Plus family of graphing calculators? When calculating a 1-Prop Z Interval and the number of trials and the number of successes are given, it is important to input the trials in n and the number of successes in x. If this done incorrectly, the calculator will display...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34779
Solution 33391: Using Hyperbolic Functions on the TI-36X Pro.
...ch How do I use the hyperbolic functions on the TI-36X Pro? By pressing the Trigonometry keys (sin,cos,tan) repeatedly, you will be able to access the corresponding hyperbolic or inverse hyperbolic functions. Angle modes do not affect hyperbolic calculations. • Press [sin/sin-1] 3 times ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/33391
Solution 34777: Graphing a Non-Recursive Sequence on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...ess [ENTER] to change to SEQ mode. • Press [CLEAR] to return to the home screen. Example: Graph the sequence function u(n)=2n+1. • Press [Y=] to access the Y= editor. • Press the up arrow key then press [1] [ENTER] to set the nMin value equal to 1. NOTE: nMin is smallest value of n the seque...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34777
Solution 12162: Symbolic Derivative Example Using the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...syntax for d() is below:d(expression,variable[,order])Returns the first derivative of expression with respect to variable. The optional argument and accompanying comma are enclosed in brackets. If included, order must be an integer. If the order is less than zero, the result will be an anti-deriv...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12162
Solution 12158: Solving System of Equations Using TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
...and Voyage 200.For Example: Solve the following for x, y and z. 3x + 3y - 4z = -3-x + 2y + 5z = 188x + 4y - 7z = -5Solution:1) Press [2ND] [MATH] to access the Math worksheet2) Scroll down to #4 for Matrix and press the right arrow key3) Scroll down to #5 and press [ENTER] to paste simult( on the...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12158