Recreations
- 281
- Patterns in the Towers of Hanoi Solution
- About the clockwise-counterclockwise method or the recursive solution to the problem.
- 282
- Archimedes' Approximation of Pi
- Describes the method introduced by Archimedes for approximating Pi.
- 285
- Am I in Pi
- Determines where your birthday first occurs in PI. Checks the first 1,254,543 digits of PI.
- 286
- Billion Digit Pi
- Billion digits of Pi for download. Search for birthday dates in Pi. Introduction to maths related to Pi. Simple description of how Pi is calculated.
- 287
- Ramanujan, Modular Equations, and Approximations to Pi or How to compute One Billion Digits of Pi
- Explains and compares several formulas for evaluating this large number of numerical places for pi. Includes complete list of digits.
- 289
- Search for strings within Pi
- Searches for any string of digits (up to 120 of them) in the first 100 million digits of Pi.
- 290
- Search for your Name in the Digits of Pi
- An Online-Form that searches for a given name or word in the Digits of Pi.
- 291
- Search within Pi
- Search in the first four billion binary digits of Pi for a string and links to further information about Pi.
- 294
- Archimedes And The Computation Of Pi
- Java applets illustrating Archimedes' construction graphically and interactively.
- 297
- A Collection of Math-Olympiad Problems
- Problem sets from international and national mathematics olympiads.