Solution 37335: Troubleshooting a TI-89 family, TI-92 family or Voyage 200 Graphing Handheld That Will Not Turn On or Function Properly.
...ialize the operating system, in which you should see a progress bar filling on the screen. Remove one of the AAA or AA batteries. Press and hold [APPS], and while holding [APPS], replace the battery and press [ON]. TI-89, 92 Plus, or Voyage 200 users should see "Press I to install code...", a...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.
...re are no buttons that are stuck down below the keypad. Additional Note: The resets described in the troubleshooting steps below may cause a loss of applications, programs, and data. If at all possible please create a backup using TI Connect™ first. Remove all AAA batteries and reinsert the...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
...r explode, releasing hazardous chemicals. Discard used batteries according to local regulations. Per CA Regulation 22 CCR 67384.4, the following applies to the button cell battery in this unit: Perchlorate Material - Special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/40317
Solution 34657: Converting an Angle from Radian to Degree on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...ear] to quit out the mode screen and clear the home screen. 3) Press [3] [6] [0] [2nd] [ANGLE] [1] [Enter] this will convert the 360 degrees to an approximation of 2π 6.283185307. Please see the TI-83 Plus and TI-84 Plus Family guidebooks for additional information. Solution 34657: Convert...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34657
Solution 34620: Finding the Discriminant of a Quadratic Equation on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...re are no roots at all. Example: Find the discriminant of the equation x2+6x-5=0 1) Press [1] [sto→] [alpha] [math] [alpha] [.] [6] [sto→] [alpha] [apps] [alpha] [.] [ (-) ] [5] [sto→] [alpha] [prgm] [enter] 2) Press [alpha] [apps] [x2] [-] [4] [*] [alpha] [math] [*] [alpha] [prgm] [enter] t...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34620
Solution 10474: Using Memory Functions and Operations on the TI-1795 SV.
...ey completes any operation (acts like the [=] key) and then adds the result to memory.Example:1) Press [4] [M+] [ON/C]4 is stored to memory, and 'M' appears in the top left of the display.2) Press [4] [x] [9] [M+]36 is displayed, and the result of (36 + 4) will be stored to memory.[M-] subtracts...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10474
Solution 34619: Finding the Limit of a Function on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...built in function that can easily find the limits on the calculator, there is a work around. Using the example (x+1)/(x-1) let us find the limit as X approaches 3: 1) Press [Y=] 2) Press [ ( ] [X,T,θ,n] [+] [1] [ ) ] [/] [ ( ] [X,T,θ,n] [-] [1] [ ) ] 3) Press [zoom] [6] to select 6:Zstandard...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34619
Solution 10687: Differences in the TI-30X and TI-30Xa.
...constant. As requested by educators, it has a [k] key that will turn on the [=] key to be used as a constant. When the [k] key is selected a [k] will appear in the screen and then the [=] key will act as a constant. Another minor change is the way in which the permutation and combination functio...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10687
Solution 34602: Graphing a Step Function on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...dard to set default window settings and display the graph. Please Note: The TI-83 Plus Family will display the above graph connected. To make it appear dashed as above press [Y=] followed by [←] [←] then [enter] 6 times to select the Line Style "DOT" which appears as a dotted line. Once this...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34602
Solution 12321: Difference Between [ (-) ] and [ - ] Keys on Two Line Elementary and Scientific Calculators.
...he [ (-) ] and the [ - ] key on TI's elementary and two line scientific calculators? There are two keys on TI's two line scientific calculators that appear to be similar. The [(-)] is the negate key, which is often mistakenly used as the subtraction key. The negation key converts a positive numb...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12321
Solution 34597: Shortcuts for Working with Menus on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...rs, below are a few shortcuts that would help in navigating menus easier: • When working in a menu that has a long list of items, i.e., [CATALOG] or [APPS]; to jump down to a specific portion of the list, press the key that corresponds to the first letter of the function to be used. For example, ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34597
Solution 10702: Unexpected Results When Sin(Pi) Does Not Return Zero on the TI-68.
... Knowledge Base Search Why does the TI-68 not give zero when calculating the sin(pi)? The answer displayed when calculating p radians is an approximation of zero. When solving trigonometric functions, very sophisticated algorithms are used to calculate the most accurate answer possible....https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10702
Solution 34733: Performing Degrees, Minutes, Seconds (DMS) Conversions on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...y pressing [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 ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34733
Solution 34734: Explaining the ERR:STAT Message on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... TI-84 Plus family of graphing calculators? An ERR:STAT message is displayed when attempting a stat calculation or operation with lists that are not appropriate. Make sure you follow the rules stated below to avoid an ERR:STAT: 1) Statistical analysis must have at least two data points. 2) Med...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34734
Solution 34841:Troubleshooting the TI-83 Plus and TI-84 Plus Family of Graphing Calculators Requesting a Password.
...pictures, functions, lists, etc. This procedure may also delete all items stored in the FLASH ROM of the graphing calculator. This includes all FLASH apps (pre-loaded or otherwise) as well as appvars. For the TI-83 Plus and TI-84 Plus: • Remove 1 AAA battery. • Press and hold down the [DEL] key ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34841
Solution 12238: Clearing a Stored Operation on the TI-15 Explorer™.
... [◄] or [►] to select an operation. • With the cursor under the operation that is to be cleared, press [Enter]. The selected "OP" indicator should disappear from the display. More information on how to use the TI-15 Explorer calculator can be found in the TI-15 Quick Reference Guide. Solution 12...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12238
Solution 34592: Calculating Logs of Bases Other Than 10 on the TI-84 Plus Family of Graphing Calculators.
...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 do not have this version of OS please upgrade to this version. Example: Calculate log4160 • Press [ALPHA] [F2] [5]...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34592
Solution 34780: Computing Effective Annual Percentage Rate (APR) with Points and Fees on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...00,000 mortgage with 2 points and $5,000 in fees. With an 8% interest rate for 360 months, what is the effective APR after points and fees? • Press [APPS] and select [1:Finance]. • Choose [1: TVM Solver]. • Input 360 and press the down arrow key. • Input 8 and press the down arrow key. • Inpu...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34780
Solution 12259: Finding the Hypotenuse and Angles of a Right Triangle on the TI-30X IIS/B Scientific Calculators.
...of c is equal to 4/5 or sin (c) = 4/5. To find c, calculate the inverse sine of 4/5. Please refer to the steps provided below: 1) Make sure that DEG appears on the display (degrees mode). 2) Press [2nd] [SIN]. 3) Input 4/5. The display should show sin^-1(4/5. 4) Press [)] to close the parenthesi...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12259
Solution 34776: Using Split Screen on the TI-84 Plus Family of Graphing Calculators.
...E. 4) Press [ENTER] [2ND] [QUIT]. Please Note: The split screen is activated when you press [TRACE], [GRAPH], or [TABLE] since these are keys that apply to either half of the split. Please see the TI-84 Plus Family guidebooks for additional information. Solution 34776: Using Split Screen o...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34776
Solution 34773: Renaming a Program on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
... key, press the right arrow twice to select NEW, and press [ENTER]. • Type the new name. • Press [ENTER]. • Press [2nd][RCL]. The word Rcl will appear at the bottom of the screen. • Press the [PRGM] key, scroll to EXEC and select the old name of the program by highlighting it and pressing [...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34773
Solution 34772: Computing Net Present Value (NPV) and Internal Rate of Return (IRR) on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
...r. • Press [5] [ENTER] [(-)] [4] [ENTER] [6]. • Press [►]. • Press [2] [ENTER] [3] [ENTER] [5] [ENTER]. Calculate NPV: • Press [2ND][QUIT]. • Press [APPS] [ENTER] [7]. • Press [7] [,] [(-)] [9] [,] [2ND] [L1] [2ND] [L2]. • Press [ENTER]. Calculate IRR: • Press [APPS] [ENTER] [8]. • Press [(-)] ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34772
Solution 18669: Adjusting the Contrast on a Texas Instruments' Basic, Elementary, Scientific and Financial Calculator.
...ries in the calculator may need to be replaced. Batteries for a Scientific Calculator Batteries for a Business Financial Calculator Please see the appropriate calculator guidebook for additional information. Solution 18669: Adjusting the Contrast on a Texas Instruments' Basic, Elementary, Sci...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/18669
Solution 12161: String Commands on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...e following are the different string commands and their meaning: # - Converts a string into a variable name. This is called indirection. & - Appends or concatenate two strings into one string. char - Returns the character that corresponds to a specified character code. It is the oppo...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12161