Pi Day is an annual celebration commemorating the mathematical constant π (pi). Pi Day is observed on March 14 (or 3/14 in the month/day date format), since 3, 1, and 4 are the first three significant digits of π in decimal form. In 2009, the United States House of Representatives supported the designation of Pi Day.
Pi Approximation Day is observed on July 22 (or 22/7 in the day/month date format), since the fraction 22⁄7 is a common approximation of π, which is accurate to two decimal places and dates from Archimedes.
The entire month of March 2014 (3/14) was observed by some as "Pi Month".
In the year 2015, Pi Day will have special significance on 3/14/15 at 9:26:53 a.m. and p.m., with the date and time representing the first 10 digits of π. That same second will also contain a precise instant corresponding to all of the digits of π. However, some argue that 9:26:54 a.m. and p.m. on 3/14/15 are more accurate because of the 11th digit of π being 5, which would cause the 10th digit to round up to 4.
in year year of 2015 is particularly special as it is March 14, 2015, or, as those who celebrate Pi would say, 3.1415.
At 9:26:53 a.m., we will see the first 10 numbers of Pi. It’s a once in a lifetime event. Here’s just a slice of Pi:
3.14159265358979323846264338327950288419
7169399375105820974944592307816406286208998628034825
3421170679821480865132823066470938446095505822317253
5940812848111745028410270193852110555964462294895493
0381964428810975665933446128475648233786783165271201
the 14th March 2017 at 9:27 am, students, teachers, scientists and mathematicians around the State and World will celebrate a one-in-102 year event in a special and somewhat bizarre manner.
International Pi Day, which honours one of the world's most recognizable mathematical symbols, is traditionally celebrated on March 14 at 1.59 pm – a date and time that gives the first six digits of the number pi (3.14159) in the US date format.
This year, Pi Day falls on 3/14/15 – a sequence that won't occur for another century.
Although some Pi enthusiasts will stick to the traditional time, many will kick off celebrations at 9.27 am, permitting them to indulge in a further two digits (3.1415927) of their beloved irrational number.
One can hit 10 digits when add the time to reach 3.141592653.
Pi, represented by the Greek letter π, is the ratio of the circumference of a circle to its diameter. It is an irrational number, so its digits never end or repeat. Pi helped ancient Egypt build the pyramids and has aided in the discovery of the Higgs boson or "God particle".
Since pi is found in so many different equations in math, physics and other sciences, it is considered one of the most important mathematical constants. No matter how big or small a circle is, if one calculate the distance around it, divided by the distance across it, then will get pi.
It's used in math, naturally, but also physics, engineering and even boosts the search for planets outside our solar system.
In the film Life of Pi and novel by Yann Martel there are numerous references to the number's universality, its continuity, its perfection — arriving at the same result, regardless of the circular object tested, allows religion, mathematics and the symbolic themes of the story to merge.
Pi is irrational and it goes on forever, like so much in life.