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Abu al-Saqr Abd al-Aziz ibn Uthman ibn Ali al-Qabisi, generally known as Al-Qabisi, (Latinised as Alchabitius or Alcabitius), and sometimes known as ''Alchabiz'', ''Abdelazys'', ''Abdilaziz'' (
Arabic Arabic (, ' ; , ' or ) is a Semitic languages, Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C ...
:'' 'Abd al-Azîz'', عبدالعزيز القبيصي), (died 967) was a Muslim
astrologer Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that claim to discern information about human affairs and terrestrial events by studying the apparent positions of celestial objects. Dif ...
,
astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...
, and
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...
.


Life

Originally from Qabisa in
Iraq Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq ...
, Alchabitius later went to
Aleppo )), is an adjective which means "white-colored mixed with black". , motto = , image_map = , mapsize = , map_caption = , image_map1 = ...
where he worked for and lived in the palace of
Sayf al-Dawla ʿAlī ibn ʾAbū l-Hayjāʾ ʿAbdallāh ibn Ḥamdān ibn al-Ḥārith al-Taghlibī ( ar, علي بن أبو الهيجاء عبد الله بن حمدان بن الحارث التغلبي, 22 June 916 – 9 February 967), more commonly known ...
. He died in 967.


Work

Al-Qabisi is best known for his treatise on
judicial astrology Judicial astrology is the art of forecasting events by calculation of the planetary and stellar bodies and their relationship to the Earth. The term "judicial astrology" was mainly used in the Middle Ages and early Renaissance to mean the types of ...
, ''Introduction to the Art of Judgments of the Stars''. This was dedicated to the Emir of Aleppo, Prince Sayf al-Dawla, and survives in at least twenty-five Arabic manuscripts, and over two hundred manuscripts of its Latin translation, with twelve printed editions of the Latin work between 1473 and 1521. The Arabic text has received at least three Latin translations, which attracted several commentaries and were, in turn, translated into other European languages. In the 12th century it was translated by
Johannes Hispalensis John of Seville (Latin: ''Johannes Hispalensis'' or ''Johannes Hispaniensis'') ( fl. 1133-53) was one of the main translators from Arabic into Castilian in partnership with Dominicus Gundissalinus during the early days of the Toledo School of Tran ...
. (here cited p. 126). In 1512 it was published by
Melchiorre Sessa Melchiorre may refer to: As first name *Melchiorre Barthel (1625–1672) German sculptor *Melchiorre Cafà (1636–1667), Maltese sculptor *Melchiore Cesarotti (1730–1808), Italian poet *Melchiorre Delfico (caricaturist) (1825–1895), Italian ca ...
in
Venice Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400  ...
. The 1473 copy, and others up until 1521, features writing about Al-Qabisi by
John of Saxony , image = Photograph of John, King of Saxony (1801-1873).jpg , reign =9 August 1854 – 29 October 1873 , caption = Photograph of King John, , predecessor = Frederick Augustus II , successor =Albert , succe ...
,Lynn Thorndike, ''A History of Magic and Experimental Science,'' vol. 3, (New York: Columbia University Press, 1934), pp. 262-3. who commented his
astrological Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that claim to discern information about human affairs and terrestrial events by studying the apparent positions of celestial objects. Dif ...
works. Al-Qabisi wrote a modest book on
arithmetic Arithmetic () is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers— addition, subtraction, multiplication, division, exponentiation, and extraction of roots. In the 19th ...
, "Risala fi anwâ' al-‘adad" (Treatise on the kinds of numbers), in which he discusses
Euclid Euclid (; grc-gre, Wikt:Εὐκλείδης, Εὐκλείδης; BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the ''Euclid's Elements, Elements'' trea ...
's
perfect number In number theory, a perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For instance, 6 has divisors 1, 2 and 3 (excluding itself), and 1 + 2 + 3 = 6, so 6 is a perfect number. T ...
s and how to form them, and
Thābit ibn Qurra Thābit ibn Qurra (full name: , ar, أبو الحسن ثابت بن قرة بن زهرون الحراني الصابئ, la, Thebit/Thebith/Tebit); 826 or 836 – February 19, 901, was a mathematician, physician, astronomer, and translator who ...
's theorem on
amicable number Amicable numbers are two different natural numbers related in such a way that the sum of the proper divisors of each is equal to the other number. That is, σ(''a'')=''b'' and σ(''b'')=''a'', where σ(''n'') is equal to the sum of positive di ...
s. Other works include: * Risala fi al-ab'âd wa-'l-ajrâm (treatise on distances and bodies); * Kitāb fi ithbāt ṣinā’at Aḥkām al-nujūm (On Confirming the Art of Astrology); * Hal al-Zîjat (Solving astronomical tables); * Risāla fī imtiḥān al‐munajjimīn (A treatise for the examination of astrologers) * Shukūk al‐Majisṭī (Doubts on the Almagest); The belief in the power of stars dated back to Alexandrinian sect of
iatromathematicians Iatromathematicians (from Greek ἰατρική "medicine" and μαθηματικά "mathematics") were a school of physicians in 17th-century Italy who tried to apply the laws of mathematics and mechanics in order to understand the functioning of ...
and the more ancient cult of
Hermes Trismegistos Hermes Trismegistus (from grc, Ἑρμῆς ὁ Τρισμέγιστος, "Hermes the Thrice-Greatest"; Classical Latin: la, label=none, Mercurius ter Maximus) is a legendary Hellenistic figure that originated as a syncretic combination of t ...
.


See also

*
Al-Biruni Abu Rayhan Muhammad ibn Ahmad al-Biruni (973 – after 1050) commonly known as al-Biruni, was a Khwarazmian Iranian in scholar and polymath during the Islamic Golden Age. He has been called variously the "founder of Indology", "Father of Co ...
*
Haly Abenragel Abū l-Ḥasan 'Alī ibn Abī l-Rijāl Banu Shayban , al-Shaybani ( ar, أبو الحسن علي ابن أبي الرجال) (commonly known as ''Haly'', ''Hali'', ''Albohazen Haly filii Abenragel'' or ''Haly Abenragel'', from ''ibn Rijal'') was a ...


References


External links

* *
PDF version
* Year of birth missing 967 deaths 10th-century astronomers Medieval Syrian astronomers Medieval Syrian mathematicians {{MEast-bio-stub