Best ti 84 calculator online. We have the most sophisticated and comprehensive TI 84 type graphing calculator online. Includes all the functions and options you might need. Easy to use and 100% Free! We also have several other calculators. Please pick the appropriate calculator from below to begin. You can use your keyboard's Numpad to enter ... Shop Texas Instruments TI-84 Plus Graphing Calculator Blue at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up. Price Match Guarantee. I did a TI-84 Plus CE battery comparison test a little while ago. Even after 5 years of heavy daily use and charging the calculator to 100% often; the battery is only down to 80% health which still gives you 24 hours of non-stop use at max brightness (which is a month or two of normal use). Tons of TI-82s, around $10 a piece. A couple TI-84 Plus C Silver Colors for $45 a piece (I really liked these back in grade school, so definitively near the top of the list :P) A TI-Nspire with a TI-84 pad for $25. A TI-89 Titanium for $30 (negotiable). Casio's lineup is a lot more confusing to me, so I haven't looked at any of those.Not so much. Using the recently improved Transformation app on the TI-84 Plus CE provides an illustration of the movement that changing the value of b has on the graph. Here are the steps to graph the function using the Transformation app: Press Œ} and choose the Transfrm to start the app running. Press o and enter the function in the problem ...Tons of TI-82s, around $10 a piece. A couple TI-84 Plus C Silver Colors for $45 a piece (I really liked these back in grade school, so definitively near the top of the list :P) A TI-Nspire with a TI-84 pad for $25. A TI-89 Titanium for $30 (negotiable). Casio's lineup is a lot more confusing to me, so I haven't looked at any of those. Jun 24, 2022 · By Tech Powered Dad | June 24, 2022. The TI-84 Plus is the most widely used calculator on the ACT and the best version is the TI-84 Plus CE. Click the button below to see it on Amazon. One of the most common students ask before taking the ACT is, “Can I use my calculator on the test?”. Adding Logs of Base 10 or e. Press the LOG button located on the left of the 7 key. The display should now show: log (. Enter in the number that is to be logged. For example, 100, then close the parenthesis. The display should now show: log (100) Press the add button and the LOG button again and enter in the next number to be logged.Texas Instruments TI-84 Plus CE Handheld Graphing Calculator, Teal, 84PLCE/TBL/1L1/AS. S$271.52. TI-84 Plus CE has a 320 x 240-pixel color screen that displays graphs in detail. 154KB RAM and 3MB flash ROM memory help you quickly solve equations and generate graphs.BOVKE Hard Graphing Calculator Case Compatible with Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-83 Plus CE/Casio fx-9750GII, Extra Zipped Pocket for USB Cables, Manual, Pencil, Ruler, Black $17.99 $ 17 . 99Adding Logs of Base 10 or e. Press the LOG button located on the left of the 7 key. The display should now show: log (. Enter in the number that is to be logged. For example, 100, then close the parenthesis. The display should now show: log (100) Press the add button and the LOG button again and enter in the next number to be logged.Shells got more elaborate over time, culminating in Doors CS by Christopher Mitchell (KermMartian), which had icons for assembly programs, a cursor-based UI, and a bunch of routines for programs to use. TI-84+ USB mass storage driver. The 84+ had a really wacky USB port: it was an On-the-Go port, very obscure when it was released.Step 2: Fill in the necessary information. The calculator will ask for the following information: x: The number of successes. We will type 12 and press ENTER. n: The number of trials. We will type 19 and press ENTER. C-level:The confidence level We will type 0.95 and press ENTER. Lastly, highlight Calculate and press ENTER.Feb 10, 2015 · BOVKE Hard Graphing Calculator Case Compatible with Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-83 Plus CE/Casio fx-9750GII, Extra Zipped Pocket for USB Cables, Manual, Pencil, Ruler, Black $17.99 $ 17 . 99 The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the TI-84 features ... Texas Instruments TI-84 Plus Graphing Calculator TI84+ (3476) $35.99 to $59.99 Trending at $45.99 $4.97 shipping 140 sold TI-84 Plus Graphing Calculator + Batteries, BUDGET BARGAIN, Texas Instruments (1) $39.00 Trending at $48.00 Free shipping or Best Offer TI-83 Graphic Calculator plus Sliding Cover Texas Instruments Graphing TI83 83 (2883)Yellow/School condition units are School Property versions in yellow color. Screen Scratches/Dents condition are budget units in Acceptable or better condition that minor screen scratches and dents. USB Cable (USB Mini-B to USB-A) for HP-50G, TI-84+, TI-NSPIRE, and Others. $3.95, 3/$9.93, 6/$15.96, 12/$29.88. Texas Instruments TI-84 Plus Graphing Calculator 10-Digit LCD. TI-84 Plus Graphing Calculator 10-Digit LCD. New. An essential educational tool it is conveniently preloaded with software including Cabri Jr. interactive geometry software to give users the edge they need to succeed in the classroom.The TI-83 Plus has a pragmatic key layout and an easy-to-use graphing interface, with a simple programming language for creating conversion programs. The TI-83 Plus stores and analyzes up to 10 matrices combined with data storage in lists containing up to 999 elements per list. You can also solve equations interactively for different variables.By adding a Python version to the TI-84 Plus CE graphing family, students can learn to program using the same dedicated, distraction-free tool they are already familiar with from math classes. Python is: Easy to learn and use. Recommended for beginners and experienced programmers. Able to give students real-world experience that translates to ... Get the best deals for ti 84 at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!TI-84 Plus CE Color Graphing Calculator, Red. 2,115. 1K+ bought in past month. $13968. List: $149.00. FREE delivery Thu, Sep 7. Only 7 left in stock - order soon. More Buying Choices. $112.00 (101 used & new offers) Step-by-step instructions. Standard deviation can be calculated using several methods on the TI-83 Plus and TI-84 Plus Family. Standard deviation can be calculated by using the stdDev () function. The stdDev () function can be located by performing the following: 1) Press [2nd] [LIST]. 2) Scroll to MATH and select 7:stdDev (.Apr 2, 2021 · Not so much. Using the recently improved Transformation app on the TI-84 Plus CE provides an illustration of the movement that changing the value of b has on the graph. Here are the steps to graph the function using the Transformation app: Press Œ} and choose the Transfrm to start the app running. Press o and enter the function in the problem ... Shells got more elaborate over time, culminating in Doors CS by Christopher Mitchell (KermMartian), which had icons for assembly programs, a cursor-based UI, and a bunch of routines for programs to use. TI-84+ USB mass storage driver. The 84+ had a really wacky USB port: it was an On-the-Go port, very obscure when it was released.Free worksheets download, advance algebra, "methods" TI-84 plus download program, dividing algebraic fractions worksheet. Math revision sheets ks3, = 0.416666667 fraction, Trigonometry Answers, yardage decimal convert to fraction, freeonline test papers for primary 4.Apr 22, 2021 · To answer this, we can use the geometpdf () function. Press 2nd and then press VARS. Scroll down to geometpdf () and press ENTER. Then type in the following values and press ENTER. The probability that the fourth person the researcher talks to is the first person to support the law is 0.1024. The TI-84 Plus CE graphing calculator features a captivating color display that enables students to see equations, data and graphs clearly and make stronger connections. In addition to the high-visibility color innovation, the TI-84 Plus CE calculator’s other key features include: 30% lighter and thinner than earlier generation TI-84 Plus models.Oct 29, 2020 · In this video, I give a introductory tutorial on the Texas Instruments TI-84 Plus calculator, one of the most commonly used graphing calculators today.Topics... Solution 34506: Calculating and Graphing a Linear Regression on the TI-84 Plus family of graphing calculators. How do I calculate and graph a linear regression on the TI-84 Plus family of graphing calculators? The following example will demonstrate how to calculate a linear regression. First, you will need to enter the data:The Vernier EasyData ® app from Vernier Software & Technology is simple data-collection software for the TI-84 Plus family of graphing calculators. Explore the world around you using this app. The EasyData ® app auto-launches data collection when used with Vernier EasyTemp ® sensor, and loads built-in experiments for every supported Vernier ...Texas Instruments TI-84 Plus CE Handheld Graphing Calculator, Teal, 84PLCE/TBL/1L1/AS. S$271.52. TI-84 Plus CE has a 320 x 240-pixel color screen that displays graphs in detail. 154KB RAM and 3MB flash ROM memory help you quickly solve equations and generate graphs.The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the TI-84 features ... Advanced analysis tools are also available on the Texas Instruments TI-83 Plus. You can access statistical and regression analysis, graphical analysis, and data analysis when needed. There are features that can be used for all different types of math. The large, clear LCD screen is easy to read and can display up to 12 characters and eight lines. instructions, examples, and functions in this guidebook also work for the TI-84 Plus. The two graphing calculators differ only in available RAM memory, interchangeable faceplates, and Flash application ROM memory. Sometimes, as in Chapter 19, the full name TI-84 Plus Silver Edition is used to distinguish it from the TI-84 Plus.The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the TI-84 features ...It retains the same functionality as its predecessor, the TI-83+, but offers more memory, and several updated features. Keypress sequences that work on one usually work on the other. The keys on the TI-84+ are colour-coded by function. The white keys include the number keys, decimal point, and negative sign. When entering negative values, use ...Save on Calculators. Brand New SEALED 2022 MODEL! Texas Instruments Ti-84 Plus CE Graphing Calculator. $98.97. Trending at $110.00.Here is the list of approved calculators for the SAT ® if you want to make certain your calculator is permitted: TI-73 Explorer™ graphing calculator. TI-80 graphing calculator. TI-81 graphing calculator. TI-82 graphing calculator. TI-83 graphing calculator and TI-83 Plus graphing calculator. TI-83 Plus Silver Edition graphing calculator.It retains the same functionality as its predecessor, the TI-83+, but offers more memory, and several updated features. Keypress sequences that work on one usually work on the other. The keys on the TI-84+ are colour-coded by function. The white keys include the number keys, decimal point, and negative sign. When entering negative values, use ...The TI-84 Plus CE graphing calculator features a captivating color display that enables students to see equations, data and graphs clearly and make stronger connections. In addition to the high-visibility color innovation, the TI-84 Plus CE calculator’s other key features include: 30% lighter and thinner than earlier generation TI-84 Plus models.TI-84 Plus CE Color Graphing Calculator, Red. 2,115. 1K+ bought in past month. $13968. List: $149.00. FREE delivery Thu, Sep 7. Only 7 left in stock - order soon. More Buying Choices. $112.00 (101 used & new offers) A TI-84 Calculator, sometimes called a TI-84 Plus or a TI-84 Plus Graphing Calculator, is the gold standard right now for math, science, and statistics courses in high school (and beyond). In a nutshell, the TI 84 is a powerful calculator for students to create more complex graphs and solve higher math equations.Finding the Area Under a Standard Normal Curve Using the TI-84Visit my channel for my Probability and Statistics Videos.4,500 + results for ti 84 calculator Save this search Shipping to: 23917 Shop on eBay Brand New $20.00 or Best Offer Sponsored Texas Instruments TI-84 plus Graphing Calculator Case - Black NEW Free Shipping Brand New $29.95 zamas-2957 (39) 95.3% Buy It Now Free shipping 6+ watchers Sponsored The TI-84 Plus CE and TI-84 Plus C Silver Edition can display either Mathprint or Classic modes to solve equations. Mathprint is the default mode, to verify or change modes, press [MODE], highlight MATHPRINT or CLASSIC and press [ENTER]. To solve 2x+6=10 in Mathprint mode, follow the steps below: 1) Press [MATH] [ALPHA] [B] OR press [MATH] and ...Best ti 84 calculator online. We have the most sophisticated and comprehensive TI 84 type graphing calculator online. Includes all the functions and options you might need. Easy to use and 100% Free! We also have several other calculators. Please pick the appropriate calculator from below to begin. You can use your keyboard's Numpad to enter ...Calculator Rules. Bring your own calculator. You can’t share one. You can only use your calculator on the portion of the test labeled Math Test – Calculator. You may not use a calculator while working on the Math Test – No Calculator portions, or during the Reading and Writing and Language sections. You must put the calculator away during ...Not so much. Using the recently improved Transformation app on the TI-84 Plus CE provides an illustration of the movement that changing the value of b has on the graph. Here are the steps to graph the function using the Transformation app: Press Œ} and choose the Transfrm to start the app running. Press o and enter the function in the problem ...Get the best deals for ti 84 calculator used at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!Not so much. Using the recently improved Transformation app on the TI-84 Plus CE provides an illustration of the movement that changing the value of b has on the graph. Here are the steps to graph the function using the Transformation app: Press Œ} and choose the Transfrm to start the app running. Press o and enter the function in the problem ...Save on Calculators. Brand New SEALED 2022 MODEL! Texas Instruments Ti-84 Plus CE Graphing Calculator. $98.97. Trending at $110.00. Texas Instruments Used TI-84 Plus Silver Graphing Calculator $84.95 Sale: $79.95: Texas Instruments Used TI-84 Plus C Silver Color Graphing Calculator $99.95 Sale: $89.95: Texas Instruments Used TI-84 Plus CE Color Graphing Calculator $109.95 Sale: $99.95: Hewlett Packard HP-50G Used RPN and Algebraic Graphing Calculator $224.95TI-84 Plus by Texas Instruments The TI-83 Plus has a pragmatic key layout and an easy-to-use graphing interface, with a simple programming language for creating conversion programs. The TI-83 Plus stores and analyzes up to 10 matrices combined with data storage in lists containing up to 999 elements per list. You can also solve equations interactively for different variables.Apr 14, 2020 · probability: the significance level. v: the degrees of freedom. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen where you can then use invT (): This tutorial shares several examples of how to use the invT () function to find T critical values on a TI-84 calculator. 1. Press the STAT button on your calculator. It's in the third column of keys. 2. Select the Edit menu and press ↵ Enter. It's the first option on the menu. You will see columns (lists) labeled L1 through L6. Note: The TI-84 allows you to enter up to six different lists of data sets. 3.Great calculator but some bugs This calculator is a great way to avoid spending $120-$200 on a Ti84 calculator. However I have found some bugs when it come to running some of the statistic test such as 2propztests etc. however for the majority of your functions, you can’t get a better calculator. -response to developer: The errors I found were in the statistics tests under “STAT —> TESTS ...Best ti 84 calculator online. We have the most sophisticated and comprehensive TI 84 type graphing calculator online. Includes all the functions and options you might need. Easy to use and 100% Free! We also have several other calculators. Please pick the appropriate calculator from below to begin. You can use your keyboard's Numpad to enter ... Apr 14, 2020 · To find the Z critical value on a TI-84 calculator, we can use the following function: invNorm (probability, μ, σ) where: probability: the significance level. μ: population mean. σ: population standard deviation. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen ... A TI-84 Calculator, sometimes called a TI-84 Plus or a TI-84 Plus Graphing Calculator, is the gold standard right now for math, science, and statistics courses in high school (and beyond). In a nutshell, the TI 84 is a powerful calculator for students to create more complex graphs and solve higher math equations.Advanced analysis tools are also available on the Texas Instruments TI-83 Plus. You can access statistical and regression analysis, graphical analysis, and data analysis when needed. There are features that can be used for all different types of math. The large, clear LCD screen is easy to read and can display up to 12 characters and eight lines. Calculator Rules. Bring your own calculator. You can’t share one. You can only use your calculator on the portion of the test labeled Math Test – Calculator. You may not use a calculator while working on the Math Test – No Calculator portions, or during the Reading and Writing and Language sections. You must put the calculator away during ... Mar 26, 2016 · Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10 12 will display as 2.53 E 12. You can enter an expression in scientific notation by pressing [2nd][,] to type an E, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation. Save on Calculators. Brand New SEALED 2022 MODEL! Texas Instruments Ti-84 Plus CE Graphing Calculator. $98.97. Trending at $110.00.The TI-83 Plus has a pragmatic key layout and an easy-to-use graphing interface, with a simple programming language for creating conversion programs. The TI-83 Plus stores and analyzes up to 10 matrices combined with data storage in lists containing up to 999 elements per list. You can also solve equations interactively for different variables.Apr 14, 2020 · probability: the significance level. v: the degrees of freedom. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen where you can then use invT (): This tutorial shares several examples of how to use the invT () function to find T critical values on a TI-84 calculator. From the keyboard and computer-menu interface to the ability to save and share work with built-in apps, the TI-Nspire™ CX II models retain the features and functionality that make TI-Nspire™ CX graphing calculators ideal for math and science from middle grades through college. Perform computations and enter expressions, equations and ...Texas Instruments TI 84 Plus Graphing Calculator with Guerrilla Military Grade Screen Protector Set, Certified Reconditioned. 4.4 out of 5 stars 741.At my school, we use a mix of both Desmos and Ti-84 calculators in different situations. We've taken tests on our Chromebooks before, so it's not like they couldn't allow us to use Desmos, but for the super serious college admittance tests that really want to minimize cheating only allow traditional calculators.Jul 19, 2022 · The TI-84 Plus CE stands out as a premium graphing calculator that you can rely on, boasting over a dozen built-in applications, including correct math notation, inequality graphing, and data collection. The graphing calculator is exceptionally thin and surprisingly lightweight and comes with a high resolution, full-color backlit display. Description. Used TI-84 Plus – The Texas Instruments TI-84 Plus graphing calculator can be used for many function. The TI-84 Plus calculator is easy to use and is perfect for math and science classes including algebra, geometry, trigonometry, pre-calculus, calculus, physics, chemistry, and biology. This model is enhanced with Flash memory for ... Buy and sell used ti-84 calculators with local pick-up or shipped across the country. Log in to get the full Facebook Marketplace experience. Texas Instruments TI-84 Plus C Silver Edition Color Graphing Calculator. It Is In Good Working Con.Step 2: Fill in the necessary information. The calculator will ask for the following information: x: The number of successes. We will type 12 and press ENTER. n: The number of trials. We will type 19 and press ENTER. C-level:The confidence level We will type 0.95 and press ENTER. Lastly, highlight Calculate and press ENTER.Texas Instruments Used TI-84 Plus Silver Graphing Calculator $84.95 Sale: $79.95: Texas Instruments Used TI-84 Plus C Silver Color Graphing Calculator $99.95 Sale: $89.95: Texas Instruments Used TI-84 Plus CE Color Graphing Calculator $109.95 Sale: $99.95: Hewlett Packard HP-50G Used RPN and Algebraic Graphing Calculator $224.95Not so much. Using the recently improved Transformation app on the TI-84 Plus CE provides an illustration of the movement that changing the value of b has on the graph. Here are the steps to graph the function using the Transformation app: Press Œ} and choose the Transfrm to start the app running. Press o and enter the function in the problem ...The viewing rectangle on the TI-83 is 94 pixels by 62 pixels. (A pixel is a picture element.) It is useful when graphing to have a “friendly window” in order to avoid distortion in the graph and to avoid obtaining non-integer values when using the trace function of the TI-83. In fact, q ® (ZoomStat) usually gives a "friendly window".Best ti 84 calculator online. We have the most sophisticated and comprehensive TI 84 type graphing calculator online. Includes all the functions and options you might need. Easy to use and 100% Free! We also have several other calculators. Please pick the appropriate calculator from below to begin. You can use your keyboard's Numpad to enter ...Is the TI-85 the same as the TI-84? A yes, Ti-85 is specifically designed for the basic level calculations of engineering and calculus. The graphing functions provided by this device are limited and obsolete. However, Ti-84 is equipped with advanced graphing technology.Nov 4, 2021. Do people still use TI-83?Apr 14, 2020 · probability: the significance level. v: the degrees of freedom. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen where you can then use invT (): This tutorial shares several examples of how to use the invT () function to find T critical values on a TI-84 calculator. Texas Instruments TI 84 Plus Graphing Calculator with Guerrilla Military Grade Screen Protector Set, Certified Reconditioned. 4.4 out of 5 stars 741.Contact a U.S. dealer Contact a Canadian dealer. Visit the TI online store to purchase products, accessories and replacement parts quickly and easily. Note: Not all retailers carry every TI product at their respective retail outlets or online stores. Category.The TI-84 Plus CE stands out as a premium graphing calculator that you can rely on, boasting over a dozen built-in applications, including correct math notation, inequality graphing, and data collection. The graphing calculator is exceptionally thin and surprisingly lightweight and comes with a high resolution, full-color backlit display.We would like to show you a description here but the site won’t allow us.
Advanced analysis tools are also available on the Texas Instruments TI-83 Plus. You can access statistical and regression analysis, graphical analysis, and data analysis when needed. There are features that can be used for all different types of math. The large, clear LCD screen is easy to read and can display up to 12 characters and eight lines.. Womens cargo pants handm
Apr 24, 2017 · Adding Logs of Base 10 or e. Press the LOG button located on the left of the 7 key. The display should now show: log (. Enter in the number that is to be logged. For example, 100, then close the parenthesis. The display should now show: log (100) Press the add button and the LOG button again and enter in the next number to be logged. Here's a website where you can run an emulator directly. You do need to get hold of ti 84 rom though. I was able to get one running pretty quickly. There's also youtube instructions on how to run the emulator on a home computer and then remote into it from the chromebook. Wolfram alpha would be the easiest at replicating your teachers instructions.TI-84 Plus by Texas InstrumentsContact a U.S. dealer Contact a Canadian dealer. Visit the TI online store to purchase products, accessories and replacement parts quickly and easily. Note: Not all retailers carry every TI product at their respective retail outlets or online stores. Category.Texas Instruments Used TI-83 Plus Graphing Calculator. Used calculator in good condition. Includes calculator, batteries, and slide case only. Very Good condition units have very few cosmetic issues. Acceptable condition units will have more and larger cosmetic imperfections and marks.As far as where you are allowed to use the calculator, almost every test or class that allows a TI-85 will allow a TI-84 as well. The TI-84 is a much better investment. (If the TI-84 is too expensive, look into getting a TI-83.All TI-30X and TI-36X models (Any Texas Instruments calculator must have “TI-30X” or “TI-36X” in its model name.) These TI calcuators will be familiar for those who have used TI-83s, TI-89s, etc. Our TI-36X Pro Calculator Tips and Tricks For The FE Exam. Texas Instruments TI-30X IIS Scientific Calculator Available Digitally on the ExamApr 14, 2020 · Step 2: Fill in the necessary information. The calculator will ask for the following information: x: The number of successes. We will type 12 and press ENTER. n: The number of trials. We will type 19 and press ENTER. C-level:The confidence level We will type 0.95 and press ENTER. Lastly, highlight Calculate and press ENTER. You can use our Texas Instruments calculator buyback program to sell older models like the TI-83 Plus, TI-84, and TI-89 regular and silver editions. To get started, select the TI model above. You can then select the condition to receive your instant trade in price quote. If you are satisfied with the value, complete the checkout process.Free worksheets download, advance algebra, "methods" TI-84 plus download program, dividing algebraic fractions worksheet. Math revision sheets ks3, = 0.416666667 fraction, Trigonometry Answers, yardage decimal convert to fraction, freeonline test papers for primary 4.Tons of TI-82s, around $10 a piece. A couple TI-84 Plus C Silver Colors for $45 a piece (I really liked these back in grade school, so definitively near the top of the list :P) A TI-Nspire with a TI-84 pad for $25. A TI-89 Titanium for $30 (negotiable). Casio's lineup is a lot more confusing to me, so I haven't looked at any of those. Product Description. The all-purpose TI-84 Plus graphing calculator features more than a dozen preloaded apps including functionality that encourages exploration of interactive geometry, inequality graphing, and real-world data collection and analysis. Ideal for middle school through college. 5 star..