Complex Numbers

Mathematician Adrien Douady explains complex numbers. The square root of negative numbers is explained in simple terms. Transforming the plane, deforming pictures, creating fractal images.

15mins

29 Jun 2008

Rank #1

The fourth dimension continued

Mathematician Ludwig Schläfli talks to us about objects in the fourth dimension and shows us a procession of regular polyhedra in dimension 4, strange objects with 24, 120 and even 600 faces!

15mins

28 Jun 2008

Rank #2

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The fourth dimension

Mathematician Ludwig Schläfli talks to us about objects in the fourth dimension and shows us a procession of regular polyhedra in dimension 4, strange objects with 24, 120 and even 600 faces!

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Dimension three

M. C. Escher tells the adventures of two-dimensional creatures who are trying to imagine three-dimensional objects.?

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Hipparchus explains how two numbers can describe the position of a point on a sphere. He then explains stereographic projection: how can one draw a picture of the Earth on a piece of paper?

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Introduction to Phun. The new entertaining and extreme fun eductional computer program. Using Phun to explain Math.

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Vedic multiplication or weaving multiplication. Fibonacci's Sieve or Lattice Multiplication. John Napier's Bones multiplication.

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Prove Inequality using the Method of Mathematical Induction.

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