Join or Sign In

Sign in to add and modify your software

Sign in with Facebook Sign in with email

By joining, you agree to our Terms of Use and acknowledge the data practices in our Privacy Agreement.

Fourier Game for iOS

Developer's Description

This is an educational game used to illustrate the basic concept of the Fourier Transform, which dictates that any continuous function can be described by the sum of sinusoidal functions of various frequencies, amplitudes, and phases. You are given a randomly-generated target waveform composed of 4 subcomponent waveforms. Your goal is to reproduce that waveform as closely as possible by adjusting 4 subcomponent waveforms of your own. The target waveform is red. Your current cumulative waveform generated by the sum of your 4 component waveforms is green, and each of your component waveforms is blue. Basically, you must adjust each of your blue waveforms until your green waveform matches the red waveform. The "New" button will generate a new random target waveform. The "Next Frequency" button cycles through each of your subcomponent waveforms, circularly. (The current frequency is always displayed on the bottom right of the screen in blue). And, the Mode button switches between Beginner and Advanced modes. In Beginner mode, there is no phase-difference between the 4 waveforms, so you only have to worry about the amplitude (up and down) adjustment. In Advanced mode, you have to adjust amplitude and phase (right and left). It is VERY difficult, because you are adjusting 8 parameters in order to achieve one target result. I hope you find it challenging and informative. Also, the bottom left of the screen indicates the RMS (Root Mean Square) value of the difference between your green waveform and the red target waveform. Try to get this value down to zero. A wealth of information is available online (e.g. Wikipedia), and you may find that the Fourier Transform is not only a mathematical construct, but it is used in: music, electrical engineering, physics, image processing, robotics, etc. It allows you to view the world in a whole new domain.

Full Specifications

What's new in version 1.0


Release August 25, 2010
Date Added August 25, 2010
Version 1.0

Operating Systems

Operating Systems iOS
Additional Requirements Compatible with iPhone, iPod Touch, and iPad. Requires iOS 3.1 or later. iTunes account required


Total Downloads 1
Downloads Last Week 0
Report Software

Related Apps

Pokemon GO

Pokemon GO

HQ - Live Trivia Game Show

HQ - Live Trivia Game Show

Batman - The Telltale Series

Batman - The Telltale Series

Air Traffic Controller 4.0 XL Lite - The free ATC airplane simulator Game

Air Traffic Controller 4.0 XL Lite - The free ATC airplane simulator Game

Best VPN Services for 2020

Best for privacy

3 months free with 1-year plan

Best for customer support

$39.99 for the first 12 months

Best for zero logs

$4.87.99/months for a 1-year plan

Best money-back guarantee

$2.99/months for a 3-year plan