3.1415

Happy birthday, Einstein! But this is also Pi Day, and a very special Pi Day at that. Why so special? The date is 3/14/15, the first five digits in the ...

懒癌终末期，中二病危像. $ perl -E 'say sprintf "%4.3f",3.1415' 3.142 发布于 2015-06-18

100,000 Digits of Pi 3.141592653589793238462643383279502884197169399375105820974944592307816406286 208998628034825342117067982148086513282306647093844609550582231725359408128481 117450284102701938521105559644622948954930381964428810975665933446128475648233 …

For odd-shaped gardens try to average the width & length. Circular areas use the formula: Area = 3.1415 x radius x radius (where the radius is half the distance across the circle).

The Digits of Pi. The Joy of Pi includes one million digits of pi. But in case you need just a few, here are the first ten thousand digits: 3. 1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 8214808651 3282306647 0938446095 5058223172 5359408128 4811174502 …

Selina Jen Chia-hsüan (born 31 October 1981) is a Taiwanese singer, television host and actress. She is a member of the Taiwanese girl group S.H.E. On June 11, 2004, she graduated from the National Taiwan …

Here is a brief example of making a pipe template using parallel line development. The example below is for a mitered elbow on 2-3/8" OD Tubing.

In computer science, the shunting-yard algorithm is a method for parsing mathematical expressions specified in infix notation.It can produce either a postfix notation string, also known as Reverse Polish notation (RPN), or an abstract syntax tree (AST).

Lots of fun stuff to do: tests, mind reading, magic, etc.

Distance between any two points in classic geometry can always be calculated with the Pythagorean theorem. This will work in any number of dimensions.