## Sums and Sequences on the TI-83 Plus and TI-84 Plus

While they may not have the calculus capabilities of the TI-89, the TI-83 Plus and TI-84 Plus have two great functions for dealing with series and sums, the “seq” and “sum” functions. This tutorial explains how to use these features …

Filed under Calculus, Difficulty: Medium, TI-83 Plus, TI-84 Plus | 2 Comments

## Solving Systems of Linear Equations with Row Reduction on the TI-83 Plus and TI-84 Plus

Suppose you wanted to find the solutions to the following set of equations: Xavier and Yolanda both bake pies. In one hour, the pair create a total of 5 pies. If Xavier works for 3 hours and Yolanda works for …

## How 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 on the TI-89/V200 series than the the TI-83 Plus …

## Hypothesis Testing using the Z-Test on the TI-83 Plus, TI-84 Plus, TI-89, and Voyage 200

The TI-83 Plus and TI-84 Plus are optimized for performing many tasks in statistics, and one of their most powerful features is the ability to perform a variety of tests of statistical significance. With the statistics package installed, the TI-89, …

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## Business and Finance Math #1: Future Value of an Annuity Due

Business and Finance Math is an ongoing series produced by Calcblog to present topics and concepts found in the world of business and finance. Our goal with this series is to provide you with a practical framework for identifying and …

Filed under Difficulty: Medium, Finance, HP 12c, TI BA II Plus | 3 Comments

## Three Applications to Turn Your TI-83+ or TI-84+ into a TI-89

The TI-89 series of calculators is packed with features that, unfortunately, are lacking in the TI-83+ and TI-84+. This tutorial will show you how to install and use three applications to add 3D graphing, symbolic differentiation, simplifying equations, and pretty-print …

Filed under Algebra, Calculus, Difficulty: Medium, TI-83 Plus, TI-84 Plus | 18 Comments

## Performing a Linear Regression on the TI-83+ or TI-84+

Linear relationships are examined in practically every discipline of the natural and social sciences. Using the statistics functions of the TI-83+/TI-84+ it is relatively easy to investigate this relationship by performing a linear regression on two variables, such as the …