8 math talks to blow your mind
Phi, 1.618, the Golden Ratio and Fibonacci series and its...
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Stephen Toner, Mathematics Instructor at Victor Valley College, home page
Nerd Paradise : Divisibility Rules for Arbitrary Divisors...
Roulette -- from Wolfram MathWorld
The curve traced by a fixed point on a closed convex curve as that curve rolls without slipping along a second curve. The roulettes described by the of when rolled upon a line are sections of (i.e., they yield when revolved about the line) know...
NUMB3RS Episode 504: Thirty-Six Hours--Wolfram Research...
NUMB3RS Episode 504: Thirty-Six Hours--Wolfram Research Math Notes
Kaprekar Number -- from Wolfram MathWorld
Consider an -digit number . Square it and add the right digits to the left or digits. If the resultant sum is , then is called a Kaprekar number. For example, 9 is a Kaprekar number since
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