Mathematician:Qin Jiushao
Mathematician
Chinese mathematician, meteorologist, inventor, politician, and writer.
Credited with the discovery of the Ruffini-Horner method.
Also credited with inventing the Tianchi basin, a type of rain gauge instrument used to gather meteorological data.
Noted in particular for having a boisterous personality with a violent streak.
Nationality
Chinese
History
- Born: in Puzhou (Anyue), Szechwan province, China
- Died: in Meizhou (now Meixian), Guangtong province, China
Writings
Also known as
In Chinese: 秦九韶
With tones: Qín Jiǔsháo
Also transliterated Ch'in Chiu-shao.
His courtesy name was Daogu (Chinese: 道古).
Sources
Qin Jiushao is regarded as one of the greatest mathematics in Chinese history. However, he was also very accomplished in other fields. Qin wrote the "Mathematical Treatise in Nine Sections" in CE. He included a general form of the Chinese remainder theorem that used algorithims to solve it. He discovered the formula for finding the area of a triangle from the given lengths of three sides. It is the same formula as Heron's formula. Qin also recorded the earliest explanation of how Chinese calendar experts calculated astronimcal data according to the timing of the winter solstice. Other accomplishments include the introduction techniques for solving certain types of algebraic equations using a numerical algorithm and for finding sums of arithmetic series. Most importantly, he introduced the use of the zero symbol into Chinese mathematics.
Qin Jiushao
(Qin Jiushao o Ts'in Kieu-shao; Sichuan , hacia - Meixian, hacia ) Matemático chino. Debe su fama a un importante libro: el Tratado de matemáticas en nueve capítulos (). Cada capítulo de este libro consta de dos secciones, y cada sección contiene nueve problemas.
Qin Jiushao
El tratado cubre una amplia gama de temas; aunque la mayor parte está dedicada a temas puramente matemáticos, como el análisis indeterminado, y a la solución de ecuaciones lineales, se ocupa también de muchas aplicaciones de las matemáticas, como la astronomía, el calendario, la geodesia, la arquitectura y el comercio. En él resolvió más de veinte ecuaciones utilizando un método análogo al descubierto por Ruffini en el siglo XIX, y es la obra más antigua en que aparece el cero.
Puesto que también hace comentarios prácticos sobre las matemáticas, el libro de Qin proporciona una valiosa información sobre las condiciones sociales y económicas en China durante el siglo XIII. Qin desarrolló su talento en muchas otras áreas además de las matemáticas, como en la música, el tiro con arco, la esgrima, la poesía y la arquitectura.
Cómo citar este artículo:
Tomás Fernández y Elena Tamaro. &laqu
Qin Jiushao - Biography
Biography
Qin was born in Ziyang, Sichuan, his ancestry was from Shandong, and he is now regarded as an outstanding mathematician of the 13th century CE. This is particularly remarkable, as Qin did not devote his life to mathematics. He was accomplished in many other fields, however, and held a series of bureaucratic positions in several Chinese provinces.
Qin’s reputation as a mathematician lies in his Shùshū Jiǔzhāng (“Mathematical Treatise in Nine Sections”), written in CE. The treatise covered matters that ranged from indeterminate equations, to military matters and surveying, to the numerical solution of certain polynomial equations up to 10th order. In the treatise, Qin included a general form of the Chinese remainder theorem, which used Da yan shu (大衍术) algorithms to solve it. In geometry, he discovered “Qin Jiushao's formula” for finding the area of a triangle from the given lengths of three sides. This formula is the same as Heron’s formula, proved by Heron of Alexandria about 60 BCE, though knowledge of the formula may go back to Archimedes.
Qin recorded the earliest explanation of how Chinese calendar experts calculated astronomical d
Biographies you may also like
Antoine saint de exupéry biography examples style Regarded as an existential fable for adults as well as one of the century's best children's books – it is the world's most frequently translated work of fiction – the story concerns a young prince .
Oliwia dabrowska biography examples Biography of Olivia Dabrovskaya. Olivia Dabrovskaya is a student and actress, best known for her role in the film "Schindler's List". In , Olivia was only 3 years old, but that didn't stop her Missing: examples.
I nyoman masriadi biography for kids I Nyoman Masriadi has been hailed as a leading figurative painter in contemporary art by art historians, critics and collectors alike. Born in Gianyar, Bali, Masriadi studied painting at the .
Poesia recitata da giancarlo giannini biography Giancarlo Giannini interpreta "Prolungamento di un bacio”: poesia d' amore di Pedro Salinas. #GiancarloGiannini #pedrosalinas ULTIMI GIORNI “La Missing: biography.
Abbas ali kadkhodaei biography of martin Kadkhodaei, who was the former speaker of the Constitutional Council, warned against the consequences of blacklisting the IRGC as a “terror entity” which is against global Missing: martin.
Shirlyn mozingo biography of christopher Catherine Mozingo was born on 03/18/ and is 53 years old. Catherine's current home is located at Toccoa, GA. Christy Mozingo, Catherine D Moringo, Christy D Mozingo, Christy C .
Chinnakannan sivasankaran biography of albert Starting his career as a fabrication contractor for MRL (now Chennai Petroleum Corporation), Mr Sivasankaran in the last two decades has built a $3-billion business empire Missing: albert.