Which of these is NOT one of the four division algebras permitted by
Chapter 1

The birth of the forbidden number

Chapter 2

The magic of the complex plane

Chapter 3

Surpassing i with quaternions

Chapter 4

The infinite climb of dimensions

Ch 4 · The infinite climb of dimensions
007skaty

007skaty The Cayley-Dickson construction doubles the dimensions of mathematical number systems.

3h ago

007skaty

007skaty The 8D Universe

Forget the i, let's step right through the gate, Where tiny strings vibrate in dimensions eight.

3h ago

007skaty
Sedenions and the loss of division
BETA

007skaty Combine these 16-dimensional numbers to discover why division fails in higher dimensions.

3h ago

007skaty
The double-or-nothing game

007skaty John T. Graves and Arthur Cayley designed a procedure doubling number dimensions from 1D to 2D, 4D, and 8D.

3h ago

007skaty
Quiz

What is the name of the algebraic process used to double the dimensions of a number system?

3h ago

007skaty
Quiz

Starting with real numbers, how many dimensions are created in the third step of this construction?

3h ago

007skaty
Expanding a system's capacity eventually breaks the rules that make it useful.

3h ago

007skaty
The eccentric octonions

007skaty The eccentric octonions introduce seven distinct imaginary units to modern algebra.

3h ago

007skaty
Quiz

Which mathematical property is lost when moving from Quaternions to Octonions?

3h ago

007skaty
Quiz

How many imaginary units are required to define an eight-dimensional Octonion?

3h ago

007skaty
Fun Fact

The magic eight: Octonions are so mathematically perfect for 8D space that they are used to solve the 'kissing number problem,' packing spheres in higher dimensions.

3h ago

007skaty
Quiz

What is the name of the sixteen-dimensional number system that follows the Octonions?

3h ago

007skaty
Quiz

What bizarre algebraic property do Sedenions possess that makes division impossible?

3h ago

007skaty
Glossary
monad (noun)
An indivisible ultimate unit that is the basic constituent of physical and metaphysical reality. Alexander questions the nature of this ultimate unit, which the text defines as the collective unconscious.

3h ago

007skaty
Quiz

Which cutting-edge theory of physics uses Octonions to model the vibrations of subatomic particles?

3h ago

007skaty
Quiz

In how many dimensions does superstring theory propose our universe actually operates?

3h ago

007skaty
Gossip

Do you believe our universe actually has hidden, higher dimensions?

3h ago

007skaty
The limits of mathematical imagination

007skaty Real numbers, Complex numbers, Quaternions, and Octonions are the only systems where you can add, subtract, multiply, and divide.

3h ago

007skaty
Quiz

Which of these is NOT one of the four division algebras permitted by Hurwitz's Theorem?

3h ago

007skaty
Quiz

According to Hurwitz's Theorem, what is the maximum number of dimensions a division algebra can have?

3h ago