written by Wolfgang Christian

The Hidden Function model evaluates a function f(x) with parameters.  It is designed to teach function concepts by allowing a teacher to define a function, hide that function in a repackaged jar file, and asking students to find the hidden function.  Students vary the independent variable and observe the resulting function value.  If the unknown function includes arbitrary parameters (e.g., f(x)=a*x-3) the parameters appear as additional input fields.

The Hidden Function model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run Java archive.  Double clicking the ejs_math_HiddenFunction.jar file will run the program if Java is installed.  EJS is a part of the Open Source Physics Project and is available in the OSP Collection.

• Download ejs_math_HiddenFunction.jar - 1082kb Java Archive File

Published June 8, 2012
Last Modified June 6, 2014

This file has previous versions.

A pdf file that provides additional documentation regarding customization of this simulation.

• Download hidden_function_documentation.pdf - 173kb Adobe PDF Document

Published July 12, 2012
Last Modified August 9, 2012

This file is included in the full-text index.
This file has previous versions.

The source code zip archive contains an XML representation of the Hidden Function Model.   Unzip this archive in your EJS workspace to compile and run this model using EJS.

• Download ejs_math_HiddenFunction.zip - 43kb Compressed File

Last Modified June 6, 2014

This file has previous versions.