square seeds and round numbers 01 19 2015

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The Mathematics of Labyrinths David Thompson & Diana Cheng Towson University

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Page 1: Square seeds and round numbers 01 19 2015

The Mathematics of Labyrinths

David Thompson & Diana ChengTowson University

Page 2: Square seeds and round numbers 01 19 2015

Definition & example

Labyrinths

Maze: One way in One way out

Properties: Circuits (7) Seed pattern (square)

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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

Page 4: Square seeds and round numbers 01 19 2015

Labyrinths in architecture & art

Serpentine mosaic labyrinth in Paphos, Cyprus (Roman)

Kabala or “Tree of Life” labyrinth (classical)

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Contemporary labyrinths

Tim Chartier’s (2014) Math Bytes labyrinths

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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!

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Compass & straightedge GSP SP

Construction of Classical Labyrinths

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1. Construct a Square2. Construct the midpoints & connect opposite

midpoints

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From Each Midpoint to the end point of the square dilate each point by a ½ ratio

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Create a Cross and find the center of the labyrinth

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Using the center of the labyrinth construct an arc on circle extend points as necessary(arc on

circle)

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Create the quarter circles to complete the circuits (arc through 3 points)

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Construct the lower quarter circles(Extend the lower part of the square arc through 3 points)

Hide all points except corners of square

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Color the labyrinth using the exterior arcs (semi circle, 2 upper and 2 lower quarter cirlces) and

square

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# 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

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3 & 7 Circuit Labyrinths

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11 & 15 Circuit Labyrinths

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19 & 23 Circuit Labyrinths

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# circuits vs. # dilated points

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# circuits vs. # interior intersection dots

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Radius vs. Length of outer semi-circle radius

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Arc length vs. # circuits

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Area of labyrinth

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Dilations

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Equations of semi-circles

Page 26: Square seeds and round numbers 01 19 2015

Equations of semi-circles (part 2)