In February, OS 2.53 was released by Texas Instruments for the TI-84+. This is unquestionably the best set of upgrades ever issued for the calculator. If you’re a longtime 84 plus user, you’ll feel like you’ve been given a new calculator for free. This video illustrates the improvements and guides you through the upgrade. More recently, a less major update, OS 2.55 was issued, but everything in this video still applies.
UPDATE: If you are interested in the TI-84 Plus C, please check out my TI-84+C Review. I was fortunate to receive a pre-release device from TI for review purposes. After word broke last week of a possible new graphing calculator from Texas Instruments, I reached out to TI, asking if they’d be willing to make any on the record comment about the rumors. Today, I heard from Texas Instruments Digital Content Manager Dale Philbrick, who gave me the first official public comments from Texas Instruments about their new device, the TI-84+ C graphing calculator.
Just received an email from marketing at Texas Instruments alerting me that they released a new operating system for the TI-84 plus a couple of days ago. The newest release for the TI-84 is 2.55MP. This new TI-84 OS offers templates (or “wizards” as TI calls them) for statistics features, such as regressions and statistics. The email also said users have the ability to paste these commands back to the home screen so they can be used in other calculations.
Please click here to get your TI-84 Plus on Amazon. UPDATE (11/16/10) TI-84+ SE not discontinued in North America As promised, I am continuing to update the original story below. Today, I received an email from Dale Philbrick, marketing manager for mathematics at Texas Instruments. Mr. Philbrick says that the internet rumors of the demise of the TI-84+ Silver Edition are unfounded and that Texas Instruments has no plans to discontinue the Silver Edition in North America at this time.
Teaching calculus students how to do integration goes way beyond the scope of a short article or video. The basics of taking a definite integral on the TI-84+, however, are pretty straightforward. This video lesson covers how to find a definite integral on a TI-84 plus both within the home screen and within a graph.
This video lesson covers and introduction to graphing on the TI-84+. Inputting equations, tracing functions, and adjusting the graph window, and using zoom features are all explained.
Click here for my in depth written TI-84+ vs. TI-Nspire buying guide.
Imaginary numbers can be a source of confusion when they are first introduced to a student, but they don’t have to be. Basically, we are trying to deal with the problem of the square root of a negative number. When we take the square root of negative one, the number is called i. This video lesson includes a brief explanation of complex numbers and a tutorial on how to use your TI-84+ to do calculations involving complex numbers.
When you are given multiple equations and multiple variables, a graphing calculator can be a lifesaver. New versions of the TI-84+ come with a pre-installed app the makes these problems a snap. This video lesson covers solving systems equations by the elimination, or linear combination method, before covering how to use the TI-84 plus to solve. The lesson does require you to have the PLYSMT2 app installed on your TI-84.
If you’re a student of geometry or trigonometry, you’ve probably come across problems involving degrees, minutes, and seconds. This is an alternative to measuring in decimal degrees, and it works a lot like time. The conversion rates are: 1 degree = 60 minutes 1 minute = 60 seconds. As a result, 1 degree = 3,600 seconds. If you want to convert from degrees, minutes, seconds to decimal degrees, you can divide by 60 and 3600 for minutes and seconds respectively.
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