square seeds and round numbers 01 19 2015
TRANSCRIPT
The Mathematics of Labyrinths
David Thompson & Diana ChengTowson University
Definition & example
Labyrinths
Maze: One way in One way out
Properties: Circuits (7) Seed pattern (square)
Greek mythology: Theseus entered a labyrinth & killed the Minotaur
Labyrinths around the world
Cathedrale Notre Dame de Chartres, France (medieval)
Hopi Indians’ penta-seed pattern (classical)
4000 year old concept
Labyrinths in architecture & art
Serpentine mosaic labyrinth in Paphos, Cyprus (Roman)
Kabala or “Tree of Life” labyrinth (classical)
Contemporary labyrinths
Tim Chartier’s (2014) Math Bytes labyrinths
http://labyrinthlocator.com/home
Baltimore area: JHU Bayview St John’s Lutheran Church (Parkville) Stevenson University’s Greenspring
Campus - Menning Meditation Center and Labyrinth
Find a labyrinth near you!
Compass & straightedge GSP SP
Construction of Classical Labyrinths
1. Construct a Square2. Construct the midpoints & connect opposite
midpoints
From Each Midpoint to the end point of the square dilate each point by a ½ ratio
Create a Cross and find the center of the labyrinth
Using the center of the labyrinth construct an arc on circle extend points as necessary(arc on
circle)
Create the quarter circles to complete the circuits (arc through 3 points)
Construct the lower quarter circles(Extend the lower part of the square arc through 3 points)
Hide all points except corners of square
Color the labyrinth using the exterior arcs (semi circle, 2 upper and 2 lower quarter cirlces) and
square
# of circuits and: # of dilated points in inner square # of interior intersection dots
Radius & length of outer semi-circle radius
Arc length & # circuits Area of labyrinth Dilations Equations of semi-circles
Math within labyrinths
3 & 7 Circuit Labyrinths
11 & 15 Circuit Labyrinths
19 & 23 Circuit Labyrinths
# circuits vs. # dilated points
# circuits vs. # interior intersection dots
Radius vs. Length of outer semi-circle radius
Arc length vs. # circuits
Area of labyrinth
Dilations
Equations of semi-circles
Equations of semi-circles (part 2)