The story of a circle and pi by ancient Chinese mathematician Cao Chong-ji
Written on the Rhind Papyrus of ancient Egypt
Shall we learn about pi?
First, let’s learn about the Rhind Papyrus written by Ames.
Rhind Papyrus of Ames
ancient egypt
The Lind Papyrus is famous for us.
It is one of the papyri that organized the ancient Egyptian mathematical system.
Named after Alexander Henry Lind, who purchased the papyrus near Luxor in 1858.
It was named “Lind Papyrus.”
It was reported that it was illegally excavated near Ramesseum.
It is estimated to have been made around 1550 BC.
Most of the papyri are held in the British Museum.
Only a portion of it is housed in the Brookline Museum.
It is known that Ames, an ancient Egyptian scribe, wrote it down.
The letters written are written in priestly characters.
Zhao Chongzhi, ancient Chinese mathematician
ancient china
He was a renowned scientist, epidemiologist, and mathematician during the Northern and Southern Dynasties in China.
He is known as the world's first person to accurately calculate the value of pi to 7 decimal places.
Our ancestors have lived in Chuhyeon for generations, and Cho Chung-ji's grandfather, Cho Chang, moved to Gangnam to escape the war.
It is said that he became the Tripitaka Koreana of the Song Dynasty and was in charge of various civil engineering and construction projects.
Cho Chung-ji's father was also known as an intellectual who served the Song Dynasty.
Cho Chung-ji, born in Geongan in 429, had a family history of astronomy.
From a young age, I learned mathematics, astronomy, and even the sciences related to the calendar.
It is said that he always had a habit of observing and recording the movement of the sun and stars.
The story of pi by Ames and Cho Choong-ji
ktgmath
Circumference is the ratio of the circumference of a circle to its diameter, that is,
It is a mathematical constant that represents the ratio of the circumference to the diameter of a circle.
Covered in various fields of mathematics and physics
It's one of the most important constants.
It is both an irrational number and a transcendental number.
Archimedes' calculations are widely known.
It is also called Archimedes constant.
In Germany, in the 1600s, Rudolf van Koelen introduced the number to 35 decimal places.
It is said that the ratio of pi was calculated.
After that, people came to call it Rudolph number.
Because the value of pi is an infinite decimal number that does not circulate,
In calculations including pi,
3.14 or 3.141 etc.
Use an approximation taking the first decimal place, or
Use the symbol pi.
Circumferential problem and circumference of circles and squares
pi Story Parts 1 and 2
This was a historically important discovery.
Mathematicians tell stories about pi throughout history.
“Pi Story Parts 1 and 2”
This video was produced by ktgmath.
The Rhind Papyrus of ancient Egypt, written above,
The story of Cao Chong-ji, an outstanding mathematician in ancient China.
I made it into two videos.
In the first video, we tell you about the myths related to the ancient Chinese calendar.
How did Leonardo da Vinci create circles and squares?
This is a video summarizing what was covered.
I will provide links to parts 1 and 2 below.
If you are curious about civilization and mathematics,
Please subscribe to ktgmath.
thank you
Subscriptions and likes are love.
#historyofmathematics #math #mathematician #mathstory
