Quick Tip: How to Clear Variables on the TI-89, TI-92 Plus, and Voyage 200
Sometimes, it is useful to store specific values in the letter variables (a-z) on your device, especially if you will be using that specific value over and over again. For example, you can store the...
View ArticleHow to Create a Simple Quadratic Formula Program on the TI-89 and Voyage 200
Like the TI-83 Plus and TI-84 Plus, the TI-89, TI-92 Plus, and Voyage 200 graphing calculators all have their own integrated programming language, TI-BASIC. While this language is somewhat more complex...
View ArticleFactoring Polynomials on the TI-89 and Voyage 200
The TI-89, TI-92 Plus, and Voyage 200 offer two built-in functions for easily factoring expressions and trinomials/polynomials into their component parts. This tutorial explains when to use these...
View ArticleHow to Change the Batteries on Your TI-83 Plus, TI-84 Plus or TI-89
At some point while using your graphing calculator, you will turn on your calculator and be greeted with one of the following messages: Unlike in many portable electronics, changing your calculator’s...
View ArticleSAT Test Prep #3: Calculating Sale Prices, Percentages and Discounts
One of the ways you can improve your SAT is score is identifying problems that may seem simple but are actually written to trick you. If you are rushing through a test, you may miss out on easy points....
View ArticleAce the SAT – Our New Test Prep Book!
We’re very proud to announce Calcblog’s test preparation book, Ace the SAT Using Your TI Calculator: Using the TI-84 Plus and TI-89 to Crack the SAT Math Section! This book is packed with tips, tricks...
View ArticleSAT Prep #4: Using Your Calculator’s Fraction Features
Both the TI-83/TI-84 Plus and the TI-89 have built-in features for dealing with fractions, which can help to solve many of the fractions problems on the SAT. For example, on the TI-84, you can convert...
View ArticleHow to Round Numbers on the TI-84 Plus and TI-89
Sometimes it’s useful to work in units with only a certain number of decimals. For example, if you’re doing money calculations, you probably don’t want to think about fractions of cents. If you want to...
View ArticleSAT Calculator Strategies – SAT Test Prep #5
There are a lot of misconceptions about calculator use on the SAT. This article covers some basic strategies on how to use your calculator “smarter.” It also attempts to dispel some of the myths you’ve...
View ArticleHow to Enter Logarithms on Your Graphing Calculator
Most graphing and scientific calculators have the ability to calculate logarithms, but you might come across questions which require you to use a different base than your calculator’s built-in...
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