Many of you may already be familiar with using a graphing calculator to put a matrix in reduced row echelon form. Did you know that you can do the same thing with WolframAlpha?
To see how this is done, let’s start from the system of linear equations
Category: Technology
Make a Table of Values in Google Sheets
Suppose you want to generate a table of values from a formula…perhaps to help evaluate a limit. Google Sheets (or any spreadsheet) can quickly generate the values.
How Do You Find Compound Interest Future Value In Google Sheets?
Google Sheets contains several powerful commands for calculating compound interest. This MathFAQ demonstrates how to compute future value using compound interest.
Matrices with Technology
As you may have noticed, some matrix operations are very tedious by hand. In particular, matrix multiplication and matrix inverses are much easier to do using a graphing calculator or WolframAlpha. In the Weekly Learning Plan, I put several handouts to help you use your calculator to do these problems.
- Handout: Matrix Multiplication on a TI Graphing Calculator
- Handout: Inverse Matrix on a TI Graphing Calculator
- Handout: Solve a System with Inverses on a TI Graphing Calculator
However, some of you do not have a graphing calculator…you’ll need to use WolframAlpha to carry out these operations.
Use a Blog to Help Teach Your Math Class (Part 3)
As a mathematics teacher, it all begins and ends with how easy it is to put math into a blog. If it is cumbersome to get it online, it is a no go. If it is unattractive, it is a no go. If some types of math are not available, it is a no go.
There are a numbers of ways to put mathematics into a blog. Over the past few years I have settled on a method that allows me to put any type of mathematics into a blog. The result is attractive, but slightly cumbersome. To do this I use two software tools, Mathtype and SnagIt. Free trials are available for both tools. Other tools might also be used to create equations and to capture them as gif or jpeg images.
Continue reading “Use a Blog to Help Teach Your Math Class (Part 3)”