Solution 11870: Using Solve( with Trigonometric Functions Returns Unexpected Results on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why does solve(sin(x)=0,x) return x=@n1*p on the TI-89 family, TI-92 family, and Voyage 200 graphing calculators? This equat...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11870
Solution 11501: Resolving Error Skipping: Keyfon73.fon When Installing the TI Connect™ Software.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why do I get the error Skipping: Keyfon73.fon when installing TI Connect? The error Skipping: Keyfon73.fon indicates that the TI-73 key font is not...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11501
Solution 20469: Incorrect Answer Received When Dividing Two Values in Scientific Notation Using the TI-30XS/B MultiView™ and TI-34 MultiView™ Scientific Calculators.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search Why do I receive an incorrect answer when I divide two values in scientific notation using the TI-30XS/B MultiView and TI-34 MultiView? The TI-30XS/...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/20469
Solution 10359: Unexpected Results Converting from Binary to Hexadecimal on the TI-85 and TI-86 Graphing Calculator.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why do I experience unexpected results when converting from binary to hexadecimal on the TI-85 and TI-86 graphing calculators? The largest number re...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/10359
Solution 11804: The Anti-Derivative of Sin(x)*Cos(x) Returns an Expression in Cos(x) Instead of Sin(x) on the TI-89 Family, TI-92 Plus and Voyage™ 200.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why does the anti-derivative of sin(x)*cos(x) returns -(cos(x))^2/2 instead of 1/2sin^2(x) on the TI-89 family, TI-92 Plus and Voyage 200? The TI-89...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/11804
Solution 29030: Input is Returned as the Solution After Pressing the [enter] Key When Using the TI-36X Pro Scientific Calculator.
...ntific, elementary & basic calculators Knowledge Base Knowledge Base Search After inputting my data and pressing [enter], why does the TI-36X Pro scientific calculator return my input as the solution? The TI-36X Pro scientific calculator has built-in functionality calle...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/29030
Solution 30130: When Using Symbolic Pi, Mixed Number Conversions are Improperly Displayed on the TI-36X Pro and TI-30X Pro MultiView™ Calculators.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search When using symbolic Pi, why are improper fractions and mixed numbers not converting properly on my TI-36X Pro or TI-30X Pro MultiView calculator? Issue: When you do a ca...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/30130
Solution 12151: Updating to Operating System (OS) Version 3.10 for the TI-89 Titanium and Voyage™ 200 Deletes All Calculator Software Applications (Apps).
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why did all the apps on my calculator disappear when I updated to OS v3.10 on the TI-89 Titanium or Voyage 200? The TI-89 Titanium and Voyage 200 OS...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/12151
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.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why do I get ERROR SINGULARITY when using the Equation Solver on my TI-85 or TI-86 although an answer is given on the TI-89 family? ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/10617
Solution 10375: Correcting a DOMAIN Error When Using the Seq() Command on the TI-82.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why do I get a DOMAIN Error when using seq() command on the TI-82? A DOMAIN Error is returned when a list generated by the seq() command has more th...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/10375
Solution 40442: Texas Instruments Computer Algebra System (CAS) Calculators Produce an Unexpected Derivative Result for Function Defined with Constant.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why do Texas Instruments CAS calculators produce an unexpected result for function defined with constant that is used later to evaluate function der...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/troubleshooting-messages-unexpected-results/40442
Solution 40237: TI-30XII Solar and TI-30XII Battery displays Domain Error when Entering Certain Fractional Exponents.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search Why does the TI-30XII Solar and TI-30XII Battery displays Domain Error when Entering Certain Fractional Exponents? The caret key has limitations for...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/40237
Solution 10694: Clearing the Variable E on the TI-36X II.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search Why can't I delete the value stored to memory of variable E on the TI-36X II? In addition to serving as a memory variable, variable E also stores a...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10694
Solution 10702: Unexpected Results When Sin(Pi) Does Not Return Zero on the TI-68.
... Home | Scientific, elementary & basic calculators Knowledge Base 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 sol...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/10702
Solution 11648: Printer Display Calculator Will Not Add Or Subtract.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search Why won't my printing calculator add or subtract? In general, a printing calculator will not add or subtract if the [Calc/Tax] key is set to [Tax]. ...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/11648
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.
...4 Plus family of products Knowledge Base Knowledge Base Search I have input data (numbers) into my L1 list. Why am I getting a Data Type error message when I attach the following formula to L2? Input data (numbers) into the L1 list. L2=normalcdf( -1E99, 20...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34814
Solution 20529: Incorrect Answer Received When Computing Exponents in MathPrint Mode Using the TI-30XS/B or TI-34 MultiView™ Scientific Calculator.
... Home | Scientific, elementary & basic calculators Knowledge Base Knowledge Base Search Why do I receive an incorrect answer when I compute some problems in MathPrint mode with exponents using the TI-30XS/B or TI-34 MultiView calculator...https://education.ti.com/en/customer-support/knowledge-base/scientific-elem-calculators/product-usage/20529
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.
... Plus family of products Knowledge Base Knowledge Base Search When trying to calculate a 1-Prop Z-Interval, why do I get a domain error on the TI-83 Plus and TI-84 Plus family of graphing calculators? When calculating a 1-Prop Z Interval and the number of ...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34779
Solution 12157: Setting the Default Units for Displayed Results on the TI-89 Family, TI-92 Family and Voyage™ 200 Graphing Calculators.
... Home | Other Graphing Calculator products Knowledge Base Knowledge Base Search Why is my TI-89 family, TI-92 family or Voyage 200 changing the units I used in a calculation? The TI-89 family, TI-92 family or Voyage 200 calculat...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/12157
Investigating of pH and Conductivity during a titration of a diprotic acid
In this investigation sulfuric acid will be added to a solution of Ba(OH)2 using a pH probe and a conductivity probe. From this process the pH of first and second equivalence points will be determined along with mapping the conductivity during the titration process.https://education.ti.com/en/activity/detail/investigating-of-ph-and-conductivity-during-a-titration-of-a-diprotic-acid
Vernier - Enzyme Action: Testing Catalase Activity
Students will use an O2 Gas Sensor to measure the amount of O2 produced when H2O2 is broken down by the enzyme catalase at different concentrations, pH values, and temperatures. They will also measure the enzyme's initial reaction rates.https://education.ti.com/en/activity/detail/vernier--enzyme-action-testing-catalase-activity
Something's Fishy
In this activity, students examine the size, mass, and growth rates for three species of fish. They interpolate and extrapolate from best-fit models. Students compare the growth rates of endothermic and exothermic animals.https://education.ti.com/en/activity/detail/somethings-fishy
Vernier - Conductimetric Titration and Gravimetric Determination of a Precipitate
Students use a Conductivity Probe to measure change in conductivity during a chemical reaction and determine the equivalence point of the reaction They determine the mass of the product and calculate the molar concentration of the reactant solution.https://education.ti.com/en/activity/detail/vernier--conductimetric-titration-and-gravimetric-determination-of-a-precipitate
Vernier - Determining the Mole Ratios in a Chemical Reaction
Measure the enthalpy change of a series of reactions. Determine the stoichiometry of an oxidation-reduction reaction in which the reactants are known but the products are unknown.https://education.ti.com/en/activity/detail/vernier--determining-the-mole-ratios-in-a-chemical-reaction
How Fast Are You?
Use the Data/Graphs Wizard tool in the SciTools App to compare the averages of four sets of data.https://education.ti.com/en/activity/detail/how-fast-are-you