THABIT IBN QURRA (836-901 C.E.)

Thabit Ibn Qurra Ibn Marwan al-Sabi al-Harrani was born in the year 836 C.E. at Harran (present Turkey). As the title indicates he was basically a constituent of the Sabian sect, but the large Muslim mathematician Muhammad Ibn Musa Ibn Shakir, impressed by his information of dialects, and appreciating his promise for a technical vocation, chosen him to connect the technical group at Baghdad that was being patronised by the Abbasid Caliphs. There, he investigated under the well known Banu Musa male siblings. It was in this setting that Thabit assisted to some parts of research, especially numbers, astronomy and mechanics, in supplement to translating a large number of works from Greek to Arabic. Later, he was patronised by the Abbasid Caliph al-M’utadid. After a long career of scholarship, Thabit past away at Baghdad in 901 C.E.

Thabit’s foremost contribution lies in numbers and astronomy. He was instrumental in extending the notion of traditional geometry to geometrical algebra and suggested some theories that led to the development of non-Euclidean geometry, spherical trigonometry, integral calculus and genuine figures. He admonished a number of theorems of Euclid’s elements and suggested significant improvements. He directed arithmetical terminology to geometrical amounts, and investigated some aspects of conic sections, especially those of parabola and ellipse. A number of his computations directed at determining the exterior and volumes of different types of bodies and constitute, in detail, the methods of integral calculus, as developed subsequent.

In astronomy he was one of the early reformers of Ptolemaic views. He investigated some. problems associated to the movements of sun and moon and wrote treatises on sun-dials.

In the areas of mechanics and physics he may be recognized as the founder of statics. He examined conditions of equilibrium of bodies, beams and levers.

In supplement to converting a large number of publications himself, he founded a school of transformation and overseen the transformation of a further large number of publications from Greek to Arabic.

amidst Thabit’s writings a large number have endured, while some are not extant. Most of the publications are on numbers, pursued by astronomy and surgery. The publications have been in writing in Arabic but some are in Syriac. In the Middle Ages, some of his publications were converted into Latin by Gherard of Cremona. In latest centuries, a number of his publications have been converted into European dialects and published.

He carried farther the work of the Banu Musa male siblings and subsequent his child and grandson continued in this tradition, together with the other members of the group. His initial books as well as his transformations accomplished in the 9th years used a affirmative influence on the development of subsequent technical research.

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