Solution 33812: Algorithm Used for the cZeros() (Complex Zeros) Function on the TI-Nspire™ CAS Family.
...s( function returns a list of candidate real and non-real values of var that make expression = 0 by using the lexical Gröbner/Buchberger elimination method to attempt to determine all complex zeros. The cZeros(expr, var) function does this by computing exp►list(cSolve(expression = 0, var, var). P...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/product-usage/33812
Solution 34417: Evaluating Composite Functions for a Specific Value of X on the TI-83 Plus and TI-84 Plus Family.
...ign and arrow up 3 times to select the '=' to the right of Y1, then press [ENTER] to disable the function from being graphed. Please Note: The black square surrounding the '=' disappears once the function is disabled. • Arrow down once and press [ENTER] to disable the Y2 function from being gra...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/34417
Solution 11820: Algorithm Used for the cZeros() (Complex Zeros) Function on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
...s( function returns a list of candidate real and non-real values of var that make expression = 0 by using the lexical Gröbner/Buchberger elimination method to attempt to determine all complex zeros.. The cZeros(expr, var) function does this by computing exp►list(cSolve(expression = 0, var, var). ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11820
Solution 23891: Setting Constraints to Remove the @n Symbol From a Trigonometric Equation Using the Solve Command on TI-89 Family, TI-92 Plus Family and the Voyage™ 200.
... the @n symbol does not show the user must restrict the equation to show only one revolution of a circle. This is done one of two ways depending on whether the unit is in degree or radian mode. Please see the below example: 1) For radian mode use the restriction x>0 and x0 and x0 and x<360 P...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/23891
Solution 24995: Answers that Include an @1 or a Component Formatted as @k on the TI-89 Family, TI-92 Family, or Voyage™ 200
...me a constant appears in an answer it is listed as @1, with the command solve(x^2+y^2=r^2 and (x-r)^2+y^2=r^2,{x,y,z}) and the answer as x=r/2 and y=(square root of 3*r)/2 and z=@1 or x=r/2 and y=-(square root of 3*r)/2 and z=@1. The next example shows that the second appearance of the consta...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/24995
Solution 11695: Algorithm Used to Compute a Cubic Polynomial on a TI-85, TI-86, TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.
..., 32100} The TI-89 family, TI-92 family, Voyage 200, TI-85, and TI-86 will try to determine a cubic polynomial that best fits this data in the least squares sense by attempting to solve a linear system that is defined by the normal equations. It turns out that the normal equations for this data ...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/11695
Solution 10403: Symbolic Manipulation Capabilities of the TI-85 when Computing Derivatives.
...man"; mso-bidi-theme-font:minor-bidi;} There are no symbolic manipulation capabilities on the TI-85. The der1() and der2() functions use an exact method internally, they will not give a symbolic output. The TI-85 has been discontinued. When upgrading, consider the TI-89 Titanium or the TI-Nsp...https://education.ti.com/en/customer-support/knowledge-base/other-graphing/product-usage/10403
Genetic Probability
Use the SciTools App to simulate a Punnett square. Make predictions about genetic crosses. Learn about the following concepts; genes, alleles, dominant alleles, recessive alleles, homozygous individuals, heterozygous individuals, phenotypes, and genotypes.https://education.ti.com/en/activity/detail/genetic-probability
Vernier - Nitrate
Student uses the Nitrate Ion-Selective Probe to measure the Nitrate ions concentration in water samples. In another method, student converts nitrate ions to nitrite and use the Vernier Colorimeter to measure nitrite and calculate the nitrate levels.https://education.ti.com/en/activity/detail/vernier--nitrate
Hare Today, Gone Tomorrow
In this activity, students will develop a method to graph a predator-prey population model. They will analyze the data and gain an understanding of populations dynamics.https://education.ti.com/en/activity/detail/hare-today-gone-tomorrow_1
Falling Down
In this activity, students' will determine the average speed of a falling object. They will observe whether or not changing the mass and keeping the same shape have an effect on the average speed of the object.https://education.ti.com/en/activity/detail/falling-down
Silenced Songbirds
Students calculate the probable number of Golden-Cheeked Warblers present in a particular area. Students prepare a marked map, calculate the number of square miles in the marked area, and estimate the number of birds that live in the area.https://education.ti.com/en/activity/detail/silenced-songbirds
Picturing Percents
Students represent percents on a 10 X 10 grid. They use the grid and the calculator to generate patterns that lead to methods for calculating percentages.https://education.ti.com/en/activity/detail/picturing-percents
Electromagnetics
Describes how to use the TI-89 to solve Laplace's equation for two-dimensional electrostatic problems. The separation of variables method provides exact solutions but is restricted to specific geometries. The relaxation method is applicable to any geometry, but it provides only an approximate s...https://education.ti.com/en/activity/detail/electromagnetics
Financial Calculations
Describes how to use the TI-89 to calculate interest, present worth, loan repayments and so forth. These methods utilize the time-value-of-money.https://education.ti.com/en/activity/detail/financial-calculations
Laplace Analysis: The s-domain
Demonstrates the utility of symbolic algebra by using the Laplace transform to solve a second-order circuit. The method requires that the circuit be converted from the time-domain to the s-domain and then solved for V(s). The voltage, v(t), of a sourceless, parallel, RLC circuit with initial co...https://education.ti.com/en/activity/detail/laplace-analysis--the-sdomain
Exploring Bivariate Data
Students graph scatter plots and understand the concepts of correlation and least-squares regression. They also perform transformations to achieve linearity in the data plot.https://education.ti.com/en/activity/detail/exploring-bivariate-data
Special Cases of Normally Distributed Data
Students perform single and two-sample t procedures to investigate special cases of normally distributed data. They explore inference for a least-square regression line, including the confidence interval.https://education.ti.com/en/activity/detail/special-cases-of-normally-distributed-data
Solution 26112: Texas Instruments Software Activation Compatibility Using Disk Imaging, Disk Cloning, and Disk Ghosting.
...ion software requires the user to login and this needs to take place after the disk image has been deployed to the individual computers. There is no method available to include an Account-Based Subscription as part of a disk image. A user can login after the disk image has been deployed as long ...https://education.ti.com/en/customer-support/knowledge-base/sofware-apps/general-information/26112
Solution 26790: Troubleshooting Equivalent Expressions Giving Different Answers on the TI-Nspire™ Family Handheld and Computer Software.
...ithmetic used to approximate values on the TI-Nspire family handheld and computer software (also known as a "rounding error"). For example: arccosine(square root(2)/2) = p/4 If the user tries to test the equivalence of these numeric expressions using the TI-Nspire handheld and computer software, ...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/troubleshooting-messages-unexpected-results/26790
Solution 25890: Exact and Approximate Solutions Using the TI-Nspire™ Handheld and Computer Software.
...puter software, if only stacked fractions are used in the input, the resulting answer will also be displayed in stacked fraction form. However, if something is added to the input that approximates to a decimal value, the resulting answer will always be in decimal form. Example: 1/2 + 1/3 = 5/6 b...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/product-usage/25890
Webinar: Teach Python in CS Classrooms | Texas Instruments
...ties? Now you can explore activities based on CSTA standards. During this webinar, we examine how to use this resource to put a complete unit together on conditional statements and loops. We explore basic activities to teach the building blocks, then progress to activities that pull multiple...https://education.ti.com/en/t3-professional-development/for-teachers-and-teams/online-learning/on-demand-webinars/2024/mar-7-2024-standards-aligned-python-activities
TI-84 Plus CE Online Calculator Possibilities – Webinar | TI
... graphing calculator. Presenters will explore the use of the online calculator through a variety of in-class lessons and out-of-class activities. Whether you are using the handheld calculator or its online counterpart, this webinar will emphasize ways that you can use TI technology to enhance s...https://education.ti.com/en/t3-professional-development/for-teachers-and-teams/online-learning/on-demand-webinars/2023/jan-10-2023-expand-the-possibilities-with-the-ti-84
Exploring Common Core Topics in Middle Grades Statistics with TI-Nspire™ Technology
...ers and Teams | Online Learning | On Demand T³™ Webinars Technology: TI‑Nspire™ Technology Topic: CCSS Speakers: Vicki Carter, Betty Gasque Exploring Common Core Topics in Middle Grades Statistics with TI-Nspire™ Technology The Common Core State Standards have place...https://education.ti.com/en/t3-professional-development/for-teachers-and-teams/online-learning/on-demand-webinars/2014/exploring-common-core-topics-in-middle-grades-statistics-with-ti-nspire-technology
T³™ Teacher Leader Cadre Application Info | Texas Instruments
...l learning and successful applicants will receive this at no charge. Texas Instruments also will cover hotel costs and meals during the three days together. Graduates who complete the T3™ TLC will receive the following as a graduation gift: TI-84 Plus CE graphing calculator and TI-SmartView...https://education.ti.com/en/t3-professional-development/t3-community/teacher-leader-cadre