GeoGebra 4.0 Sneak Peek 8: The Probability Calculator

This is the eighth part of the GeoGebra 4.0 Sneak Peek Series.

Another significant addition to GeoGebra 4.0 is the Probability Calculator.  The Probability Calculator is is used for visualizing probability distributions and computing probabilities from these distributions.

The probability calculator supports distributions like Chi-Squared, Binomial, Poisson, Hypergeometric,  and more.

GeoGebra 4.0 Sneak Peek 7: Text box and Command button

The most significant improvement (I think) in GeoGebra 4.0 is the inclusion of Insert text and Insert button tools.  Before, we needed to have knowledge in HTML codes and basic Javascript to create text boxes in applets, but now all we have to do is just use these tools.

The text tool and command button is ideal for getting input form the user if we convert our worksheet to HTML and we do not wish to show the input box. The input box is used to get input from the user and the command button is used to contain commands or series of commands. For instance, the command button above has the following code: » Read more

GeoGebra 4.0 Sneak Peek 6: The Function Inspector

This is the sixth post in the GeoGebra 4.0 Sneak Peek Series. In this post, we are going to learn about the Function Inspector tool.

The Function Inspector is a new tool introduced in GeoGebra 4.0.  This tool ‘inspects’ functions revealing properties such as its minima,  maxima, root, area, and mean, etc., of a given interval.

The Function Inspector can also generate tables  of values of  x and f(x) given an interval and step value. This is very useful since we do not have to type them manually and use formulas in the Spreadsheet View.  In addition to the x, f(x) table of values, we can also add columns that display the differences between consecutive f(x) values, first derivative, and the second derivative. » Read more

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