He was from Laiyuan County, Hebei Province during the Northern and Southern Dynasties. He studied for many days since he was a child.
Books on literature and mathematics, diligent study and hard practice, finally made him an outstanding mathematician and mathematician in ancient China.
A writer.
Zu Chongzhi's outstanding achievement in mathematics is about the calculation of pi. Before Qin and Han Dynasties, people took "diameter as three weeks".
Such as pi, this is the "ancient rate." Later, it was found that the error of ancient rate was too large, and pi should be "the diameter of the circle is one and greater than Wednesday"
However, there are different opinions on how much is left. Until the Three Kingdoms period, Liu Hui put forward a scientific method to calculate pi-"cut".
"Rounding" uses the circumference of a regular polygon inscribed in a circle to approximate the circumference of a circle. Liu Hui calculated the circle inscribed with a 96-sided polygon and got π=3.
. 14, and points out that the more sides inscribed in a regular polygon, the more accurate the π value is. Zu Chongzhi is the foundation of predecessors' achievements.
On this basis, after hard study and repeated calculation, it is found that π is between 3. 14 15926 and 3. 14 15927, and π score is obtained.
Approximate in digital form, take 22/7 as approximation rate and 355/ 133 as density rate, where 355/ 133 takes six decimal places as 3. 14 1.
929 is the fraction whose denominator is within 1000, which is closest to π. What method did Zu Chongzhi use to get this result?
Now, there is no way to check. If you imagine that he will follow Liu Hui's "secant" method, you must work out the inscribed circle of16,38.
4 sides, how much time and labor will it take! This shows his tenacious perseverance in his studies.
And wisdom are admirable. The secrecy rate calculated by Zu Chongzhi is the same as that obtained by foreign mathematicians.
More than a thousand years later. In order to commemorate Zu Chongzhi's outstanding contribution, some foreign mathematical historians suggested that π = be called "ancestor".
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