Solution 11501: Resolving Error Skipping: Keyfon73.fon When Installing the TI Connect™ Software.
...Panel (or Start, Control Panel) and open the Fonts folder.• Locate the keyfon73.fon file and delete it.• Restart the computer.• Open the Fonts folder again and make sure the keyfon73.fon file is not there.• Download and install the TI Connect software. Solution 11501: Resolving Error Skipping: K...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11501
Solution 15180: Replacing and Installing the Battery In a TI-15 Explorer™ Calculator.
...but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as we cannot be held responsible for any damage caused when you attempt to replace the battery. If your calculator is already out of warranty, you might choose to remove the back case to repl...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/15180
Solution 20309: Calculating Percents and Percent Conversions Using TI-30XS/B MultiView™ and TI-34 MultiView™ Scientific Calculators.
...y. 4) Press the [+] or addition key. 5) Input 12.99 and press [enter]. The total cost for the music CD is $14.22. Example: Convert 1/8 into a percentage. 1) Input 1, press the [n/d] key, then input 8. 2) Press the [►] key to move the cursor to the outside of the fraction. 3) Press [2nd] [►%] [en...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/20309
Solution 14800: Replacing the Battery in a TI-1706 SV.
...but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as we cannot be held responsible for any damage caused when you attempt to replace the battery. If your calculator is already out of warranty, you might choose to remove the back case to repl...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/14800
Solution 23370: Solving Quadratic Equations on the TI-30X IIS/B and TI-34 II Explorer Plus™.
...quare root] and [MEMVAR] 8) Use the right cursor to scroll to B and press [=] [X2] 9) Press [-], input 4 and press [MEMVAR] [=] 10) Press [MEMVAR] again and use the right cursor scroll to C, and press [=] 11) Press [)] [)] [÷] 12) Press [(], input 2 and press [MEMVAR] [=] [)] 13) Press [=] a...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/23370
Solution 20889: Ranger Program Will Not Work with CBL/CBR App on TI-83 Plus Family Graphing Calculators with OS 1.19.
...culators with OS 1.19. The CBL/CBR App is not a "true app", but a group of programs wrapped into an App. There are some changes to memory management in the 1.19 OS which conflict with the CBL/CBR App. Because of this change, users will need to download and use the Vernier EasyData™ App.I...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/20889
Solution 30130: When Using Symbolic Pi, Mixed Number Conversions are Improperly Displayed on the TI-36X Pro and TI-30X Pro MultiView™ Calculators.
...set the unit, hold down the [On] key and then press the [Clear] key. This action will clear and reset the memory. You will be able to do calculations again with accuracy. [2nd] [reset] 2 or pressing the reset button on the back of the calculator will also perform a hard reset (factory defaults). ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/30130
Solution 12294: Replacing and Installing the Battery in a TI 34II Explorer Plus™.
...but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as we cannot be held responsible for any damage caused when you attempt to replace the battery. If your calculator is already out of warranty, you might choose to remove the back case to repl...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/12294
Solution 12262: Replacing and Installing the Battery in a TI-30X IIS.
...but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as we cannot be held responsible for any damage caused when you attempt to replace the battery. If your calculator is already out of warranty, you might choose to remove the back case to repl...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/12262
Solution 10617: ERROR SINGULARITY Using the Equation Solver on the TI-85 and TI-86 When a Solution is Calculated Using the TI-89 Family.
...n contains a singularity (a point at which the function is not defined). The difference between the software on the TI-89 family, TI-92 family and Voyage™ 200 and the TI-85 and TI-86 is that they use different linear system solvers, which use a slightly different criteria for determining when a l...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/10617
Solution 12254: Converting Degrees Fahrenheit (°F) to Degrees Celsius (°C) on the TI-30X IIS/B.
...ct A; the number 32 stored in A will appear on the display screen.) 5) Press [ENTER](The screen will display the following: 98.6-32. 6) Press [ENTER] again; the screen will display: 66.6. 7) Press [x] 5 [÷] 9 and [ENTER]. 8) The screen will display: 37 which is the correct answer of 37°C. Please...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12254
Solution 12256: Converting from Rectangular to Polar Coordinates Using the TI-30X IIS/B and TI-30XS MultiView™.
...rdinates to polar coordinates, please follow the example listed below: Convert the rectangular coordinate (4,3) to polar form (r, q). To find r or magnitude: • Press [DRG] • Using the left and right arrow keys, underline DEG (for Degree mode) • Press [ENTER] • Press [2nd] [° ' "](key directly ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12256
Solution 10482: Discontinued Texas Instruments (TI) Graphing Calculators.
...hing products have been discontinued. However, some replacement parts are available on the TI Online Store. Please see the graphing calculators web page for a review of all current models available in the graphing calculator product line. Discontinued ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/10482
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.
...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 may be different from other products. ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/37336
Solution 12273: Converting Fractions to Decimals Using the TI-34.
...imal number. 1) Input 55 [a b/c] 24, and press [=]. 2) Press the [a b/c] key to display the decimal number, 2.291666667. 3) Pressing the [a b/c] key again will display the mixed number fraction, 2 and 7/24. (Pressing [2nd] [a b/c] will display the original stacked fraction, 55/24). For more info...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12273
Solution 35615: Replacing the Battery in a TI-36X Pro Scientific Calculator.
...but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as we cannot be held responsible for any damage caused when you attempt to replace the battery. However, since your calculator is already out of warranty, you might choose to remove the back ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/35615
Solution 40317: TI-30XS MultiView and TI-34 MultiView Scientific calculator battery information
...but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as we cannot be held responsible for any damage caused when you attempt to replace the battery. If your calculator is already out of warranty, you might choose to remove the back case to repl...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/general-information/40317
Solution 12283: Converting from Rectangular to Polar Coordinates Using the TI-34 II Explorer Plus.
...ng the TI-34 II Explorer Plus, please follow the example listed below: Convert the rectangular coordinate (4,3) to polar form (r, q). To find r or magnitude: 1) Press [2nd][←F]. 2) Using the left and right arrow keys, underline DEG (for Degree mode). 3) Press [ENTER]. 4) Press [2nd] [° ' "](ke...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12283
Solution 34674: Maximizing a Linear Function with the Inequality Graphing Application on the TI-84 Plus CE and TI-84 Plus C Silver Edition.
...selected inequalities. • Press [ALPHA][F1] to display the SHADES menu. • Select 1:Ineq Intersection. Note: Inequality Graphing draws the graph again, shading the intersection region of the inequalities. • Press [ALPHA][F3] to select the Pol-Trace option. The first point of interest i...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34674
Solution 12223: Calculating Mark-Up, Gross Profit Margin, and Percent Change on the TI-5018.
...he value 355, press the [x] key. • Input 16, then press [MU]. This calculates the selling price of the item, which is $411.80. • Press the [MU] key again. This calculates the amount of profit, $56.80. Example: Using the [MU] key for Margin-Up or Gross Profit Margin: Using a cost of $355 and a...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12223
Solution 10474: Using Memory Functions and Operations on the TI-1795 SV.
...splay when pressed once. To clear the memory, press the [MRC] key twice.Example:1) Press [MRC]25 is displayed, the result of (40 - 15).2) Press [MRC] again.25 remains in the display, but the 'M' indicator disappears, and the memory is cleared. Solution 10474: Using Memory Functions and Operatio...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10474
Solution 12311: Performing Decimal, Fraction and Percent Conversions on the TI-36X Solar and TI-36X II.
...tion. If using the TI-36X II, press [1] [A b/c] [4] to input the fraction.• Multiply the results by 100. The screen will show 25, which is the percentage. Example: 16 is what % of 90 Solution: • This problem can be re-written mathematically as 90 * __ = 16. To find the results, divide 16 by 90, ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/12311
Solution 10688: Replacing the Batteries In a TI-30Xa.
...ulator, but opening the back of the calculator voids the one-year, limited warranty. This must be done carefully, as TI is not responsible for any damage caused when you attempt to replace the battery. However, if your calculator is already out of warranty, you might choose to remove the back cas...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10688