Happy Pi Approximation Day! Both you readers know that Pi Day (March 14) is a day that I celebrate every year \u2014 the day gets it\u2019s name from 3.14, the first three digits of the ratio of a circle\u2019s circumference to its diameter. The date, March 14, is written as 3\/14 \u2014 thus the name.<\/p>\n\n\n\n
But today, July 22, when written as 22\/7 (the 22nd of July) is a fraction that has a value of 3.132857 \u2014 so it also has the same first three digits of Pi. In case you haven\u2019t been following this blog, I should probably repeat that the March 14 Pi Day looks like 3.14 only for those that write dates in the month, then day format. That format is rarely used outside the Americas. Today, July 22, when written as 22\/7, is in line with the European format.<\/p>\n\n\n\n Pi Day was born in the US where the month, then day format is used. Worldwide, by far the most popular date format is day\/month\/year \u2014 Pi Day (March 14) doesn\u2019t work with the world\u2019s most popular format, but the 22nd of July (22\/7) does.<\/p>\n\n\n\n Anyhow, today is Pi Approximation Day, also known as Casual Pi Day. Pi has been known for almost 4000 years \u2014 it\u2019s believed that mathematicians began to use the Greek letter for Pi (\ud835\uded1) in the 1700s. Pi is the mathematical constant with the most acknowledgement and recognition in the world. The Pi (\ud835\uded1) symbol has been used regularly in its mathematical sense for the past 250 years. Most scholars and experts also regard Pi as the most significant and interesting number in all mathematics. Pi is also called the “circular constant,\u201d \u201cLudolph\u2019s number\u201d and \u201cArchimedes\u2019 constant.\u201d\u00a0<\/p>\n\n\n\n So today, Pi Approximation Day, celebrates the Pi symbol (\ud835\uded1) and its importance to mathematics. No matter how you celebrate, recognize Pi to the extent that your belief in mathematics allows. Happy Pi Approximation Day! Both you readers know that Pi Day (March 14) is a day that I celebrate every year \u2014 the day gets it\u2019s name from 3.14, the first three digits of the ratio of a circle\u2019s circumference … Continue reading
Even though both 3.14 and 22\/7 are only approximations<\/em> of Pi, 22\/7 is really closer to Pi than 3.14.
So if you\u2019re a purist, today is a better Pi Day than March 14.\u00a0<\/p>\n\n\n\n
\u2014 30 \u2014<\/p>\n","protected":false},"excerpt":{"rendered":"