What does π tattoo mean?

π tattoo pattern has the following meanings:

1, commemorating π day

Although people know that π has been used for nearly 4000 years, "π" has been used as a symbol representing pi for nearly 300 years.

1706, the British mathematician William Jones used the Greek letter π to express pi for the first time. π ranks 16 in the Greek alphabet and is also the first letter of "circumference" in Greek. 1737, the great Swiss mathematician Euler also began to express pi.

Although people have begun to use π, the earliest recorded π Day celebration is more than 200 years later.

1988 On March 4th, at the initiative of Larry Shaw, a physicist at the Science Discovery Museum in San Francisco, USA, staff and tourists held a celebration in the circular space of the Discovery Museum and shared a fruit pie.

On March 1 1 day, 2009, the U.S. House of Representatives passed a resolution and officially designated March 14 as "National pi day".

2.π romance

Friends who have seen the American TV series Suspect Tracking (it doesn't matter if they haven't seen it) probably know Mr. Zhai, and there is a famous speech in it, claiming that π contains everything.

After learning this, when it comes to love stories, does it really hit the girl's heart: "My love for you is like pi, endless, always the freshest, and anything is possible between us."

3. Eating goods and π

There is a strange connection between π (pie) and pizza, except that they are both delicious. This is a famous math joke:

"What is the volume of a pizza with thickness A and radius Z?"

The answer is "pizza".

That is, volume = pi (π) z (radius) z a (thickness).

(Volume = π radius squared thickness).

Of course, this is only a simple extrapolation of the cylinder volume formula. But it actually has a very serious name, called the second theorem of pizza.

4.π and academics

One of the most amazing applications of π in reality: the tortuosity of a river on the plain, that is, the total length of the river/the branch distance from the source to the estuary, tends to π with time.

The length of the blue curve/the length of the red arrow ≈ π.

5.π company

Babies who are concerned about Internet finance and P2P must have found that there is a platform that uses π as a logo. The company's vision is to provide financial services for 30 140,000 users, and March14 is their party day.

6. The extended meaning is high, such as awkward and abrupt.

"Wu" is a standard secondary word in modern Chinese, which is pronounced as W u in Mandarin. It first appeared in Oracle Bone Inscriptions's time and belongs to hieroglyphics in Liu Shu. The basic meaning of "martial arts" is high and flat, describing bald mountains, generally referring to baldness, such as vultures, "Shushan martial arts, Albania out"; The extended meaning is to protrude high, such as standing upright and abrupt.

In daily use, "Wu" is often used as an adverb, indicating sitting upright, such as Wu.