Here's the "Troll Pi" or "Pi equals 4" image.
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A collection of free, web browser-based apps that aim to make mathematics intuitive for learners of all ages.
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The Story of Mathematics - A History of Mathematical Thought from Ancient Times to the Modern Day
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Two trains are on the same track a distance 100 km apart heading towards one another, each at a speed of 50 km/h. A fly starting out at the front of one train, flies towards the other at a speed of 75 km/h. Upon reaching the other train, the fly turn...
Neil Bickford calculated the first 458 million terms for the continued fraction of pi, breaking the previous record of 180 million. He used to develop his code and verify his results—which he posted shortly after he turned 13.
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