By Chris McMullen

This colourful, visible advent to the fourth measurement presents a transparent rationalization of the strategies and diverse illustrations. it truly is written with a slightly of character that makes this an attractive learn rather than a dry math textual content. The content material is particularly available, but while targeted adequate to meet the pursuits of complicated readers. This booklet is dedicated to geometry; there aren't any non secular or spiritual elements to this booklet. may possibly you get pleasure from your trip into the interesting global of the fourth dimension!

Contents:

  • Introduction
  • Chapter zero: what's a Dimension?
  • Chapter 1: Dimensions 0 and One
  • Chapter 2: the second one Dimension
  • Chapter three: third-dimensional Space
  • Chapter four: A Fourth measurement of Space
  • Chapter five: Tesseracts and Hypercubes
  • Chapter 6: Hypercube Patterns
  • Chapter 7: Planes and Hyperplanes
  • Chapter eight: Tesseracts in Perspective
  • Chapter nine: Rotations in 4D Space
  • Chapter 10: Unfolding a Tesseract
  • Chapter eleven: move Sections of a Tesseract
  • Chapter 12: residing in a 4D House
  • Further Reading
  • Glossary
  • About the Author

Put in your spacesuit, strap in your defense harness, swallow your anti-nausea medication, and revel in this trip right into a fourth size of house! 10D, 9D, 8D, 7D, 6D, 5D, 4D, 3D, second, 1D, 0D. Blast off!

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Extra resources for A Visual Introduction to the Fourth Dimension (Rectangular 4D Geometry)

Example text

We can deduce that the N-dimensional hypercube (full of monkeys) will have 2N corners. This reads as, "two raised to the power of N," or, "two to the N," for short. It means 2 times itself N times: 20 = 1, 21 = 2, 22 = 4, 23 = 8, 24 = 16, etc. For example, a cube (N = 3) has 23 = 8 corners and a tesseract (N = 4) has 24 = 16 corners. Without even drawing one, we can now predict that a 5D hypercube (remember, it's filled with nuts) will have 25 = 32 corners. To see this, consider that each corner has N coordinates in N-dimensions.

It means 2 times itself N times: 20 = 1, 21 = 2, 22 = 4, 23 = 8, 24 = 16, etc. For example, a cube (N = 3) has 23 = 8 corners and a tesseract (N = 4) has 24 = 16 corners. Without even drawing one, we can now predict that a 5D hypercube (remember, it's filled with nuts) will have 25 = 32 corners. To see this, consider that each corner has N coordinates in N-dimensions. For example, in 3D the coordinates are (x,y,z) and in 4D they are (x,y,z,w). Each coordinate can be one of two values (0 or 1). That's why the formula for the number of corners in an N-dimensional hypercube (full of monkeys) is 2N.

These two cubes lie in the usual xyz hyperplane; these diagonal lines are along z, corresponding to the usual 3D depth. These z edges converge to a depth vanishing point that is above and to the right of the tesseract. That leaves 6 more cubes to find. Where are they? The last 6 cubes are top/bottom, right/left, and front/back. The first 2, inside/outside, correspond to the ana and kata cubes. The top/bottom, right/left, and front/back cubes don't look like ordinary 3D cubes drawn on a 2D sheet of paper.

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A Visual Introduction to the Fourth Dimension (Rectangular 4D Geometry) by Chris McMullen


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