10854
EXPLORE
LATEST
ABOUT
AUTHORING AREA
PARTICIPATE
Your browser does not support JavaScript or it may be disabled!
Paper-Folding an Ellipse
Start with a circle drawn on paper and mark a point inside it. Fold the circle so that the circumference touches the point. Make a firm crease. Repeat, using random folds. The creases form the envelope of an ellipse.
Contributed by:
Borut Levart
THINGS TO TRY
Drag Locators
SNAPSHOTS
DETAILS
The locator represents the point inside the circle. You can move the locator and vary the number of creases.
Reference
[1] D. Wells,
The Penguin Dictionary of Curious and Interesting Geometry
, London: Penguin, 1991.
PERMANENT CITATION
Borut Levart
"
Paper-Folding an Ellipse
"
http://demonstrations.wolfram.com/PaperFoldingAnEllipse/
Wolfram Demonstrations Project
Published: April 28, 2014
Share:
Embed Interactive Demonstration
New!
Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site.
More details »
Download Demonstration as CDF »
Download Author Code »
(preview »)
Files require
Wolfram
CDF Player
or
Mathematica
.
Related Demonstrations
More by Author
Da Vinci's Construction of an Ellipse
Borut Levart
Points around an Ellipse
John Snyder
An Elliptic Identity
Jay Warendorff
Conic Sections: Equations and Graphs
Kelly Deckelman, Kathleen Feltz, Jenn Mount
Drawing an Ellipse Using Circles and Lines
Eric Schulz (Walla Walla Community College, Walla Walla, Washington)
Locus of Points Definition of an Ellipse, Hyperbola, Parabola, and Oval of Cassini
Marc Brodie
Problems on Circles XI: Perpendicular Tangents to an Ellipse
Jaime Rangel-Mondragon
Ellipse and Friends
George Beck
Dandelin Spheres for an Ellipse
George Beck
Focus-Directrix Property of an Ellipse with Dandelin Spheres
Khalid Bin Walid
Related Topics
Conic Sections
Ellipses
Plane Geometry
Browse all topics
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to
Mathematica Player 7EX
I already have
Mathematica Player
or
Mathematica 7+