Monday, February 25, 2013

Multiplication Table

Move the Column and Row sliders to choose the numbers you want to multiply.

This is a Java Applet created using GeoGebra from - it looks like you don't have Java installed, please go to

Tuesday, February 5, 2013

GeoGebra Tutorial: How to change the x-interval to pi or pi/2

In graphing Trigonometric Functions, there are cases that you need to change the interval of the x-axis in terms of π.  In this tutorial, you will learn how to change the interval of the x-axis. 

1.) Right click a blank space on the Graphics view and then click on Graphics... from the pop-up menu to display the Preferences dialog box.

2.) In the Preferences dialog box, click on the xAxis tab, and then check the Distance check box.

3.) In the drop-down list box at the right of the Distance check box, select π or π/2 and then click the Close button to close the dialog box.

After step 3, the interval of the x-axis should be π or π/2.