Ray in a Square

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

A ray enters a square at point , reflects off the top and bottom of the square, and leaves at point with integer coordinates. What is the ratio , where is the length of the side of the square?

Contributed by: Izidor Hafner (September 2012)
Open content licensed under CC BY-NC-SA


Snapshots


Details

Reference

[1] A. F. Dunn, Second Book of Mathematical Bafflers, New York: Dover Publications, 1983, p. 50.



Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send