astro.wikisort.org - ResearcherAbū al‐Qāsim Aṣbagh ibn Muḥammad ibn al‐Samḥ al‐Gharnāṭī al-Mahri[1] (Arabic: أصبغ المهري) (born 979, Córdoba; died 1035, Granada), also known as Ibn al‐Samḥ, was an Arab[2] mathematician and astronomer from Al-Andalus. He worked at the school founded by Al-Majriti in Córdoba, until political unrest forced him to move to Granada, where he was employed by Ḥabbūs ibn Māksan. He is known for treatises on the construction and use of the astrolabe, as well as the first known work on the planetary equatorium. Furthermore, in mathematics he is remembered for a commentary on Euclid and for contributions to early algebra, among other works.[3][4] He is one of several writers referred to in Latin texts as "Abulcasim."[5]
Arab mathematician and astronomer
The exoplanet Samh, also known as Upsilon Andromedae c, is named in his honor as part of the IAU's NameExoWorlds project.[6]
References
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Astronomy in the medieval Islamic world |
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Astronomers |
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- Arabic star names
- Islamic calendar
- Aja'ib al-Makhluqat
- Encyclopedia of the Brethren of Purity
- Tabula Rogeriana
- The Book of Healing
- The Remaining Signs of Past Centuries
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Instruments |
- Alidade
- Analog computer
- Aperture
- Armillary sphere
- Astrolabe
- Astronomical clock
- Celestial globe
- Compass
- Compass rose
- Dioptra
- Equatorial ring
- Equatorium
- Globe
- Graph paper
- Magnifying glass
- Mural instrument
- Navigational astrolabe
- Nebula
- Octant
- Planisphere
- Quadrant
- Sextant
- Shadow square
- Sundial
- Schema for horizontal sundials
- Triquetrum
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Concepts |
- Almucantar
- Apogee
- Astrology
- Astrophysics
- Axial tilt
- Azimuth
- Celestial mechanics
- Celestial spheres
- Circular orbit
- Deferent and epicycle
- Earth's rotation
- Eccentricity
- Ecliptic
- Elliptic orbit
- Equant
- Galaxy
- Geocentrism
- Gravitational energy
- Gravity
- Heliocentrism
- Inertia
- Islamic cosmology
- Moonlight
- Multiverse
- Muwaqqit
- Obliquity
- Parallax
- Precession
- Qibla
- Salah times
- Specific gravity
- Spherical Earth
- Sublunary sphere
- Sunlight
- Supernova
- Temporal finitism
- Trepidation
- Triangulation
- Tusi couple
- Universe
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Institutions |
- Al-Azhar University
- House of Knowledge
- House of Wisdom
- University of al-Qarawiyyin
- Observatories
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Influences |
- Babylonian astronomy
- Egyptian astronomy
- Hellenistic astronomy
- Indian astronomy
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Influenced |
- Byzantine science
- Chinese astronomy
- Medieval European science
- Indian astronomy
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Mathematics in the medieval Islamic world |
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13th century | |
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14th century | |
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15th century | |
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16th century | |
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Mathematical works |
- The Compendious Book on Calculation by Completion and Balancing
- De Gradibus
- Principles of Hindu Reckoning
- Book of Optics
- The Book of Healing
- Almanac
- Encyclopedia of the Brethren of Purity
- Toledan Tables
- Tabula Rogeriana
- Zij
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Concepts |
- Alhazen's problem
- Islamic geometric patterns
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Centers | |
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Influences |
- Babylonian mathematics
- Greek mathematics
- Indian mathematics
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Influenced |
- Byzantine mathematics
- European mathematics
- Indian mathematics
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Related |
- Hindu–Arabic numeral system
- Arabic numerals (Eastern Arabic numerals, Western Arabic numerals)
- Trigonometric functions
- History of trigonometry
- History of algebra
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На других языках
- [en] Ibn al-Samh
[fr] Ibn al-Samh
Abū al-Qāsim Aṣbagh ibn Muḥammad ibn al-Samḥ al-Gharnāṭī al-Mahri[1], également connu sous le nom d'Ibn al-Samḥ, né en 979 à Cordoue et mort en 1035 à Grenade, est un mathématicien et astronome arabe[2] d'Al-Andalus. Il a travaillé à l'école fondée par Al-Majriti à Cordoue, jusqu'à ce que des troubles politiques l'obligent à déménager à Grenade, où il était employé par Ḥabbūs ibn Māksan. Il est connu pour ses traités sur la construction et l'utilisation de l'astrolabe, ainsi que pour les premiers travaux connus sur l'équatoire planétaire. En outre, en mathématiques, on se souvient de lui pour un commentaire sur Euclide et pour ses contributions à l'algèbre précoce, entre autres travaux [3]. Il est un écrivain parmi d'autres appelés « Abulcasim » dans les textes latins[4].
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