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### PI DAY!! Happy Pi Day - it's the 14th of the 3rd Today, 3.14, Pi, Pi Day - Celebrate in the beauty of mathematics and enjoy the infinitely complex value - Pi. Archimedes, Euler, William Jones Introductio in Analysin Infinitorum PI infographic PiDay

### Comparison of Euclidean (planar), spherical, and hyperbolic geometry

Alll about pi: 0910663d3b452ba87ea773b7c1ded5be.jpg 900×2,620 pixels

### math posters: http://math.chapman.edu/~jipsen/mathposters/

### e to the pi i for dummies - YouTube

### Darwin's Theory of Evolution Infographic

pi jokes - Bing Images

### I think the tau people have won me over. Down with pi!

Celebrate National Pi Day with a Scavenger Hunt - "In Search of Pi for my Pie"