# Jules Antoine Lissajous

> Generates and visualizes Lissajous curves with interactive controls. (iPhone/iPad app by O-R-G inc..)

- Source: https://appshunter.io/ios/app/jules-antoine-lissajous/id1030826505 (this page in markdown: same URL + `.md`)
- Developer: [O-R-G inc.](https://appshunter.io/developer/995253914)
- Category: Entertainment
- Price: $4.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 1 MB
- Languages: American English
- Released: 2015-10-26
- Data updated: 2026-09-02
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/jules-antoine-lissajous/id1030826505/reviews.md

## What is Jules Antoine Lissajous?

Jules is an iOS app that draws Lissajous curves. By randomizing the constants of the curve's equations, it draws a new shape every two minutes.

Launch Jules. Double tap the screen of your device and move your finger up or down to change the speed at which Jules draws. Double tap again to hide the speed.

Swipe the screen with two fingers to start drawing a new figure. Tap and hold at any time to save a screenshot to your camera roll.

*

I am sitting in a room with Jules Antoine Lissajous. It’s 1855 in his Paris workshop and he is showing me his “beautiful machine.” Devised to draw a picture of two systems superimposed, it is constructed of a pair of tuning forks placed facing at right angles, each with a mirror attached. The light source is focused through a lens, bouncing off the first onto the second and projecting to a large screen a few feet away. As the tuning forks are struck and tones are produced, simple vibrations begin to move the mirrors in a regular oscillating pattern. The projected image begins to form the strange and beautiful curves of a Lissajous Figure.

Easily mistaken for the infinity sign, a circle or any number of more complex pretzels and knots, the Lissajous Figure is a picture of compound harmonic motion named for French physicist and mathematician Jules Antoine Lissajous (1822–1880). The shape is drawn by plotting a two-variable parametric equation as it iterates itself over time — the resulting figure is the picture of two systems falling into and out of phase.

The simple harmonic motion which Lissajous was measuring is easily described by the motion of a clock’s swinging pendulum. As the pendulum swings its speed isn’t constant, but rather it accelerates and decelerates following a precisely predictable curve. If plotted over time, as the clock ticks the motion of its pendulum draws a sine wave — the so-called “pure wave” or zero-picture of a simple moving system. Ocean waves, sound waves, light waves, even average daily temperatures all produce this same oscillating sine wave pattern.

Compound harmonic motion, then, is simply the superimposition of two sine waves as they register, interfere and produce a series of overlapping waves. When juxtaposed at right angles, two sine waves recording simple harmonic motion produce the surprisingly complex figures that Jules Antoine Lissajous identified.

These two varying signals produce a perpetual infinity (figuratively and literally as it will actually construct itself in the shape of the infinity sign given the right initial values). The Lissajous Figure becomes a picture of timing and sequence, registration and resonance, sound and music.

Specific shapes are produced corresponding to the resonating harmonic intervals familiar from western music (major fifth, minor third, major sixth, etc.) Any figure may be transformed into any figure and an infinite number of in-betweens as the oscillating sine waves pass in and out of harmonic resonance.

Jules Antoine Lissajous created a way to see sound (using mirrors, light and vibrating tuning forks.) But the most radical possibility of his mathematics might be in the commitment it asks of its audience. The image that Lissajous produces forms slowly right in front of your eyes — imperceptibly changing, forming, adjusting and re-aligning over time.

## Key features

- Generates Lissajous curves
- Randomizes equation constants
- New shape every two minutes
- Adjustable drawing speed
- Generate new figures
- Save screenshots

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/jules-antoine-lissajous/id1030826505/reviews.md

### 5/5 — Useless Machine

*2015-10-24*

A perfect useless machine!

## Frequently asked questions about Jules Antoine Lissajous

### What is Jules Antoine Lissajous?

Jules Antoine Lissajous is an iOS app that draws Lissajous curves. It generates a new, unique shape every two minutes by randomizing the constants within the curve's equations.

### How do I change the drawing speed in Jules Antoine Lissajous?

To change the drawing speed, double tap the screen and then move your finger up or down. Double tap again to hide the speed controls.

### How can I save a drawing from Jules Antoine Lissajous?

You can save a screenshot of the current Lissajous figure by tapping and holding anywhere on the screen. The image will be saved to your device's camera roll.

### How do I generate a new figure in Jules Antoine Lissajous?

To start drawing a new Lissajous figure, simply swipe the screen with two fingers.

### What is the price of Jules Antoine Lissajous?

Jules Antoine Lissajous is available for a one-time purchase of $4.99.

### What devices is Jules Antoine Lissajous compatible with?

Jules Antoine Lissajous is compatible with Apple Watch, iPhone, iPad, and iPod.

### Does Jules Antoine Lissajous have ads?

No, Jules Antoine Lissajous does not contain advertisements. It is a completely ad-free experience.

### How often is Jules Antoine Lissajous updated?

The latest version of Jules Antoine Lissajous is 1.0.3, and it was last updated on May 29, 2025. Specific update frequency is not detailed, but it has received updates since its release on October 26, 2015.

## Version history (last 4 releases)

### 1.0.3 — 2025-05-29

This version corrects a bug in when app enters the background. It also adds sound verification when the user swipes up to reset the lissajous shape.

### 1.0.2 — 2022-03-03

Jules is now available for Apple Watch! A simpler version of the iOS app provides endless Lissajous curves. For a reflective pause in a busy day, start up Jules and watch as two sine waves construct an endlessly changing figure. The digital crown adjusts the speed of Jules' drawing to match your inner clock.

### 1.0.1 — 2018-08-20

This app has been updated by Apple to display the Apple Watch app icon.

Optimize for newer devices and update permissions request for taking screenshots.

### 1.0 — 2015-10-23

No release notes.

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## More apps by O-R-G inc.

- [Wyoscan](https://appshunter.io/ios/app/wyoscan/id995253915)
- [Multi (a multiple)](https://appshunter.io/ios/app/multi-a-multiple/id1030788573)

All apps by O-R-G inc.: https://appshunter.io/developer/995253914

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*