Abraham bar Hiyya

Abraham bar Ḥiyya ha-Nasi (also Abraham ben Chija ) ( Abraham son of [Rabbi] Hiyya "the Prince" ) (" Abraham ben Hiyya alBargeloni " ) ( "Abraham Judaeus" , " Abraham ben Chiya albargeloni Ha'Nasi " ) (" Rabeinu Avraham Bar Chiya HaNasi " ) ( "R' Avraham ben Chiya Hanasi mi'Barcelona" ) ( Avraham ben Chiya Hanasi medinat Bartselona ) ( Abraham ben Chiva ) ( Abraham Ben Chaja ) ( Abraham ben Chaja ben Rabbi Chiya , or Chaja or Haija ) ( Rabbi Abrahamo Hispano filio Rabbi Haijae ) (1065 Barcelona , Catalonia – 1145 Narbonne , France ) was a Catalan Jewish mathematician , astronomer and philosopher , also known as Savasorda (from the Arabic صاحب الشرطة Sâhib ash-Shurta "Chief of the Guard"). He was born in Barcelona and scholars suspect he traveled to Narbonne where he is thought to have died.

Abraham bar Ḥiyya ha-Nasi (1070 Barcelona , Catalonia – 1136 or 1145 Narbonne , France ) was a Jewish mathematician , astronomer and philosopher , also known as Savasorda (from the Arabic صاحب الشرطة Ṣāḥib al-Shurṭa "Chief of the Police") or Abraham Judaeus . He was born in Barcelona and scholars suspect he travelled to Narbonne where he is thought to have died. Abraham bar Ḥiyya's most influential work is his Ḥibbūr ha-meshīḥah we-ha-tishboret ("Treatise on Measurement and Calculation"), a Hebrew treatise on Islamic algebra and practical geometry . It was translated in 1145 into Latin by Plato of Tivoli as Liber Embadorum (the same year Robert of Chester translated al-Khwārizmī 's Algebra .) It contains the first complete solution of the quadratic equation x - ax + b = 0 known in Europe and influenced the work of Leonardo Fibonacci . Bar Ḥiyya wrote several more works on mathematics , astronomy and Jewish philosophy . In Thomas Hockey; et al. The Biographical Encyclopedia of Astronomers . ( PDF version ) Abraham son of [Rabbi] Hiyya "the Prince" .

Abraham bar Ḥiyya ha-Nasi ( ; c. 1070 – 1136 or 1145), also known as Abraham Savasorda , Abraham Albargeloni , and Abraham Judaeus , was a Catalan Jewish mathematician , astronomer and philosopher who resided in Barcelona . Bar Ḥiyya was active in translating the works of Islamic science into Latin , and was likely the earliest to introduce Arabic algebra into Christian Europe . He also wrote several original works on mathematics , astronomy , Jewish philosophy , chronology , and land surveying . His most influential work is his Ḥibbur ha-Meshiḥah ve-ha-Tishboret , translated in 1145 into Latin as Liber embadorum . A Hebrew treatise on practical geometry and Islamic algebra , the book contains the first known complete solution of the quadratic equation x 2 − a x + b = c {\displaystyle x {2}-ax+b=c} , and influenced the work of Leonardo Fibonacci . In Thomas Hockey; et al. The Biographical Encyclopedia of Astronomers . HaMaayan / The Torah Spring . La obra Séfer hešbón mahlekot ha-kokabim de R. There are <ref group=note> tags on this page, but the references will not show without a template (see the help page ).

Mathematician, astronomer, astrologer Abraham bar Ḥiyya ha-Nasi ( ; c. 1070 – 1136 or 1145), also known as Abraham Savasorda , Abraham Albargeloni , and Abraham Judaeus , was a Catalan Jewish mathematician , astronomer and philosopher who resided in Barcelona . Bar Ḥiyya was active in translating the works of Islamic science into Latin , and was likely the earliest to introduce Arabic algebra into Christian Europe . He also wrote several original works on mathematics , astronomy , Jewish philosophy , chronology , and land surveying . His most influential work is his Ḥibbur ha-Meshiḥah ve-ha-Tishboret , translated in 1145 into Latin as Liber embadorum . A Hebrew treatise on practical geometry and Islamic algebra , the book contains the first known complete solution of the quadratic equation x 2 − a x + b = c {\displaystyle x {2}-ax+b=c} , and influenced the work of Leonardo Fibonacci . In Thomas Hockey; et al. The Biographical Encyclopedia of Astronomers . HaMaayan / The Torah Spring . Journal for the History of Astronomy . 32 (107): 130– 136. La obra Séfer hešbón mahlekot ha-kokabim de R. There are <ref group=note> tags on this page, but the references will not show without a template (see the help page ).

Catalan Jewish mathematician, astronomer and philosopher (1070-1136) Abraham bar Ḥiyya ha-Nasi ( Hebrew : ר׳ אַבְרָהָם בַּר חִיָּיא הַנָשִׂיא ; c. 1070 – 1136 or 1145), also known as Abraham Savasorda , Abraham Albargeloni , and Abraham Judaeus , was a Catalan Jewish mathematician , astronomer and philosopher who resided in Barcelona , then in the County of Barcelona . Bar Ḥiyya was active in translating the works of Islamic science into Latin and was likely the earliest to introduce algebra from the Muslim world into Christian Europe . He also wrote several original works on mathematics , astronomy , Jewish philosophy , chronology , and surveying . His most influential work is his Ḥibbur ha-Meshiḥah ve-ha-Tishboret , translated in 1145 into Latin as Liber embadorum . A Hebrew treatise on practical geometry and algebra, the book contains the first known complete solution of the quadratic equation x 2 − a x + b = c {\displaystyle x {2}-ax+b=c} , and influenced the work of Fibonacci . In Thomas Hockey; et al. The Biographical Encyclopedia of Astronomers . HaMaayan / The Torah Spring . Journal for the History of Astronomy . 32 (107): 130– 136. La obra Séfer hešbón mahlekot ha-kokabim de R. There are <ref group=note> tags on this page, but the references will not show without a template (see the help page ).