Saturday, March 31, 2012
Friday, March 30, 2012
Thursday, March 29, 2012
Wednesday, March 28, 2012
Tuesday, March 27, 2012
Sunday, March 25, 2012
Saturday, March 24, 2012
Friday, March 23, 2012
Thursday, March 22, 2012
Wednesday, March 21, 2012
Tuesday, March 20, 2012
Sunday, March 18, 2012
Saturday, March 17, 2012
Friday, March 16, 2012
Wednesday, March 14, 2012
Happy Pi Day
Some Pi Facts
- In the Greek alphabet, p is the 16th letter (and 16 is the square of 4). In the English alphabet, p is also the 16th letter, and i is the 9th letter (the square of 3). Add them up (16 +9), and you get 25 (the square of 5). Multiply them (16 x 9), and you get 144 (the square of 12), divide 9/16, and you get 0.5625 (the square of 0.75). It’s no wonder that they say, “ Pi are squared.
- Pi is the number of times a circle's diameter will fit around its circumference.
- Here are the first 100 decimal places of PI
3.1415926535897932384626433832795028841971693993751058209
749445923078164062862089986 280348253421170679
- The fraction (22 / 7) is a well-used number for Pi. It is accurate to 0.04025%.
- Another fraction used as an approximation to Pi is (355 / 113) which is accurate to 0.00000849%.
- A more accurate fraction of Pi is (104348 / 33215). This is accurate to 0.00000001056%.
- There is no zero in the first 31 digits of Pi.
- Pi is irrational. An irrational number is a number that cannot be expressed as a ratio of integers.
- Half the circumference of a circle with radius 1 is exactly Pi. The area inside that circle is also exactly Pi!
- At position 763 there are six nines in a row. This is known as the Feynman Point.
- Write the letters of the English alphabet, in capitals, clockwise around a circle, and cross out the letters that have right-left symmetry,A,H,I,M, etc.The letters that remain group themselves in sets of 3,1,4,1, 6".
- Pi is also referred to as the “circular constant,” “Archimedes’ constant,” or “ Ludolph’s number".
- ”Pi Day” is celebrated on March 14 (which was chosen because it resembles 3.14).The official celebration begins at 1:59 p.m., to make an appropriate 3.14159 when combined with the date.
Tuesday, March 13, 2012
Sunday, March 11, 2012
Friday, March 9, 2012
Thursday, March 8, 2012
Tuesday, March 6, 2012
Subscribe to:
Posts (Atom)