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Business and Finance Math #3: Converting Effective Interest Rates (EAR) to Stated Interest Rates

Posted on February 2, 2011 at 12:18 am

In our previous blog post we introduced the concept of the effective annual rate (EAR), which is the true interest rate when compounding occurs more than one time per year. For example, 10% compounded semiannually is the same thing as 5% paid every 6 month …

Filed under Difficulty: Easy, Finance, HP 12c, TI BA II Plus | Leave a comment

Educator Resources

Posted on January 31, 2011 at 10:45 pm

Calcblog was created with both students and educators in mind. One of our primary goals with Calcblog is to be a resource for teachers and professors, providing quality content that is used in the classroom or provided as a supplement to lesson plans. G …

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Business and Finance Math #2: Calculating the Effective Annual Rate (EAR) on Your TI BA II Plus or HP 12c

Posted on January 24, 2011 at 12:59 am

Consider the following problem: Timmy Burns plans to open a new bank account and calls several banks to find out where he can earn the most interest on his money. After talking with several banks, Timmy has three options. Which bank account should he choo …

Filed under Difficulty: Easy, Finance, HP 12c, TI BA II Plus | 2 Comments

SAT Test Prep #1: Mean, Mode, and Median on the TI-83 Plus, TI-84 Plus, and TI-89

Posted on January 19, 2011 at 10:52 pm

The following is a sample SAT problem similar to many found on the actual exam: Nighttime Temperatures in Juneau, Alaska MonTueWedThuFriSatSun 32282826212225 The table above shows the temperatures, in degrees Fahrenheit, in a city in Alaska …

Filed under Difficulty: Easy, SAT, Statistics, Test Prep, TI-83 Plus, TI-84 Plus, TI-89 | 5 Comments

Calculating Derivatives on the TI-83 Plus, TI-84 Plus, TI-89, TI-92 Plus, and Voyage 200

Posted on January 13, 2011 at 12:42 pm

Derivatives are perhaps the most elementary topic in calculus and show up in practically every discipline, from the natural and social sciences to economics and finance. This tutorial discusses the mathematical background of derivatives and demonstrates ho …

Filed under Calculus, Difficulty: Easy, TI-83 Plus, TI-84 Plus, TI-89, TI-92 Plus, Voyage 200 | 1 Comment

Support Calcblog

Posted on January 12, 2011 at 10:09 pm

Running a free resource like Calcblog isn’t easy. In fact, we don’t even get paid to run the site. We produce all the original content found on the site ourselves and pay all fees to keep Calcblog up and running out of our own pocket. Your support m …

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Friends of Calcblog

Posted on January 12, 2011 at 9:44 pm

This page is dedicated to Calcblog’s supporters from around the web. We appreciate your help in spreading the word about Calcblog so our resources can be shared with others. Interested in being added to our database? Send us a message and tell us about you …

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TI Graphing Calculator Buying Guide

Posted on January 9, 2011 at 5:35 pm

TI graphing calculators come in a variety of models, with the biggest differences between devices being symbolic math capabilities and the amount of RAM and ROM space available. (To learn more about RAM and ROM, take a look at our article on RAM vs. ROM on …

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Archive vs. RAM on TI Calculators

Posted on January 8, 2011 at 10:57 pm

There are two different types of memory built into the TI-83 Plus, TI-84 Plus, TI-89, TI-92 Plus, and Voyage 200: Read-only Memory (ROM) and Random Access Memory (RAM). Calculator programs can be stored in both memory types as well as transferred between  …

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Performing a Linear Regression on the TI-89, TI-92+, and Voyage 200

Posted on January 4, 2011 at 9:45 pm

Unlike with the TI-83+ and TI-84+, it is relatively hard to perform statistics operations on the TI-89, TI-92+, and Voyage 200 the first time around. This tutorial demonstrates using the statistics functions available on this series of calculators to perf …

Filed under Difficulty: Hard, Statistics, TI-89, TI-92 Plus, Voyage 200 | Leave a comment