1. Ahmed ahmed ibn yusuf alMisri. Born 835 in Baghdad (now in Iraq) Died 912 in Cairo,Egypt. ahmed ibn yusuf s father Yusuf ibn Ibrahim was also a mathematician. http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Ahmed.html

Ahmed ibn Yusuf al-Misri Born: 835 in Baghdad (now in Iraq) Died: 912 in Cairo, Egypt Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Ahmed ibn Yusuf 's father Yusuf ibn Ibrahim was also a mathematician. Yusuf ibn Ibrahim lived in Baghdad but moved to Damascus in about 839. After a little while he moved again, taking his son Ahmed with him, and went to live in Cairo. Although we are far from certain about the date of Ahmed's birth it is believed to have been before the family moved to Damascus. Again it is unclear exactly when the family moved again to Cairo but as Ahmed became known as "al-Misri " meaning "the Egyptian" it is likely that he lived in Cairo from a fairly young age. It is worth saying a word or two about Yusuf ibn Ibrahim, Ahmed's father, since scholars have had some difficulty in deciding which texts are due to the father, which to the son, or perhaps to joint work of the two. Yusuf ibn Ibrahim is known to have been a member of a group of scholars and this must have provided a strong intellectual environment for Ahmed. As well as a text on medicine, Yusuf is known to have written a work on astronomy and produced a collection of astronomical tables. Ahmed was to achieve an important role in Egypt and to understand this we must examine how Egypt achieved relative independence from the Abbasid Caliph. The Caliphs had strengthened their armies in the 9

2. Ahmed Biography of ahmed ibn yusuf (835912) ahmed ibn yusuf's father Yusuf ibn Ibrahim was also a mathematician. Yusuf ibn Ibrahim lived in Baghdad but http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Ahmed.html

Ahmed ibn Yusuf al-Misri Born: 835 in Baghdad (now in Iraq) Died: 912 in Cairo, Egypt Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Ahmed ibn Yusuf 's father Yusuf ibn Ibrahim was also a mathematician. Yusuf ibn Ibrahim lived in Baghdad but moved to Damascus in about 839. After a little while he moved again, taking his son Ahmed with him, and went to live in Cairo. Although we are far from certain about the date of Ahmed's birth it is believed to have been before the family moved to Damascus. Again it is unclear exactly when the family moved again to Cairo but as Ahmed became known as "al-Misri " meaning "the Egyptian" it is likely that he lived in Cairo from a fairly young age. It is worth saying a word or two about Yusuf ibn Ibrahim, Ahmed's father, since scholars have had some difficulty in deciding which texts are due to the father, which to the son, or perhaps to joint work of the two. Yusuf ibn Ibrahim is known to have been a member of a group of scholars and this must have provided a strong intellectual environment for Ahmed. As well as a text on medicine, Yusuf is known to have written a work on astronomy and produced a collection of astronomical tables. Ahmed was to achieve an important role in Egypt and to understand this we must examine how Egypt achieved relative independence from the Abbasid Caliph. The Caliphs had strengthened their armies in the 9

3. References For Ahmed References for ahmed ibn yusuf. of Sci. 30 (1973), 381406. M Steinschneider, Yusufben Ibrahim und ahmed ibn yusuf, Bibliotheca mathematica (1888), 49-117. http://www-gap.dcs.st-and.ac.uk/~history/References/Ahmed.html

References for Ahmed ibn Yusuf Biography in Dictionary of Scientific Biography (New York 1970-1990). Articles: H L L Busard and P S van Koningsveld, Der "Liber de arcubus similibus" des Ahmed ibn Jusuf, Ann. of Sci. M Steinschneider, Yusuf ben Ibrahim und Ahmed ibn Yusuf, Bibliotheca mathematica Main index Birthplace Maps Biographies Index History Topics ... Anniversaries for the year JOC/EFR November 1999 School of Mathematics and Statistics University of St Andrews, Scotland The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/References/Ahmed.html

4. Apronyms: AHMED IBN YUSUF Acronyms Particular Relevancy Often Notify Your Meaning Strongly. APRONYM. 100%,ahmed ibn yusuf, ArabHatched Mathematician, Expanded Discussed Important Book. http://apronyms.com/gonym.php?ap=AHMED IBN YUSUF

5. History Of Islamic Science first four books of Apolloinos into Arabic. ahmed ibn yusuf wrote a book on proportions which are of were Abu Bakr (Albubather), ahmed ibn yusuf, and Ibn Qutaiba. The whole http://www.omarfoundation.org/Culture/History Science.htm

Islamic Contributions to Science Islam a Global Civilization History of Islamic Science George Sarton's Tribute to Muslim Scientists in the "Introduction to the History of Science," "It will suffice here to evoke a few glorious names without contemporary equivalents in the West: Jabir ibn Haiyan, al-Kindi, al-Khwarizmi, al-Fargani, al-Razi, Thabit ibn Qurra, al-Battani, Hunain ibn Ishaq, al-Farabi, Ibrahim ibn Sinan, al-Masudi, al-Tabari, Abul Wafa, 'Ali ibn Abbas, Abul Qasim, Ibn al-Jazzar, al-Biruni, Ibn Sina, Ibn Yunus, al-Kashi, Ibn al-Haitham, 'Ali Ibn 'Isa al-Ghazali, al-zarqab, Omar Khayyam. A magnificent array of names which it would not be difficult to extend. If anyone tells you that the Middle Ages were scientifically sterile, just quote these men to him, all of whom flourished within a short period, 750 to 1100 A.D." Preface On 8 June, A.D. 632, the Prophet Mohammed (Peace and Prayers be upon Him) died, having accomplished the marvelous task of uniting the tribes of Arabia into a homogeneous and powerful nation.

6. Apronyms AHMED IBN YUSUF Credit/Explanation. Angela Brett (ahmed ibn yusuf wrote on ratio and proportion,and expanded on/discussed book 5 of Euclid s Elements ). Categories. http://apronyms.com/gonym.php?ap=AHMED IBN YUSUF&mode=onlinestack

7. The Time Of Al-razi first four books of Apolloinos into Arabic. ahmed ibn yusuf wrote a book on proportions which are of were Abu Bakr (Albubather), ahmed ibn yusuf, and Ibn Qutaiba. The whole http://www.levity.com/alchemy/islam14.html

History of Islamic Science 3 Based on the book Introduction to the History of Science by George Sarton (provided with photos and portraits) Edited and prepared by Prof. Hamed A. Ead These pages are edited by Prof. Hamed Abdel-reheem Ead, Professor of Chemistry at the Faculty of Science -University of Cairo, Giza, Egypt and director of the Science Heritage Center E-mail: ead@frcu.eun.eg Web site: http://www.frcu.eun.eg/www/universities/html/shc/index.htm Back to Islamic Alchemy Back to reference library The Time of Al-Razi Second Half of Ninth Century The whole ninth century was essentially a Muslim century. This more clear in the second half than of the first, since all the scientific leaders were Muslims, or at any rate were working with and for Muslims and wrote in Arabic. Cultural Background Abbasid Caliph Al-Mutawakkil (847-861) continued to protect men of science, chiefly the physicians, and he encouraged the school of translators headed by Hunain ibn Ishaq. Da ud al-Zahiri founded a new school of theology, based upon a more literal interpretation of the Qur'an; however, did not survive very long. Muslim published a new collection of traditions, arranged according to legal topics, like Bukhari's, but more theoretical. The Egyptian Dhul-Nun is generally considered the founder of Sufism, that is, of Muslim mysticism.

8. Ahmed ahmed ibn yusuf. Born 835 ahmed ibn yusuf wrote on ratio and proportionand it was translated into Latin by Gherard of Cremona. The book http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/hmd.htm

Ahmed ibn Yusuf Born: 835 in Baghdad (now in Iraq) Died: 912 in Cairo, Egypt Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Welcome page Ahmed ibn Yusuf wrote on ratio and proportion and it was translated into Latin by Gherard of Cremona. The book is largely a commentary on, and expansion of, Book 5 of Euclid 's Elements Ahmed ibn Yusuf also gave methods to solve tax problems which appear in Fibonacci 's Liber Abaci . He was also quoted by Bradwardine Jordanus and Pacioli References (2 books/articles) Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Welcome page History Topics Index Famous curves index ... Search Suggestions JOC/EFR December 1996 The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/history/Mathematicians/Ahmed.html

9. References For Ahmed References for ahmed ibn yusuf. Articles M Steinschneider, Yusuf ben Ibrahimund ahmed ibn yusuf, Bibliotheca mathematica (1888), 49117. http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/~DZ1B0A.htm

References for Ahmed ibn Yusuf Biography in Dictionary of Scientific Biography (New York 1970-1990). Articles: M Steinschneider, Yusuf ben Ibrahim und Ahmed ibn Yusuf, Bibliotheca mathematica Close this window or click this link to go back to Ahmed Welcome page Biographies Index History Topics Index Famous curves index ... Search Suggestions JOC/EFR December 1996 The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/history/References/Ahmed.html

10. Ahmed Translate this page ahmed ibn yusuf Al-MISRI (né en 835 à Bagdad, mort en 912 au Caire) était lefils d’un mathématicien Yusuf ibn Ibrahim qui a habité à Bagdad mais il s http://membres.tripod.fr/alkashi/almisri.htm

Al-MISRI Ahmed ibn Yusuf Al-MISRI ( né en 835 à Bagdad mort en 912 au Caire était le fils d’un mathématicien Yusuf ibn Ibrahim qui a habité à Bagdad mais il s'est déplacé à Damas dans les environs 839. Après un moment il est allé habiter au Caire avec son fils Ahmed . Bien que on ne sait pas avec certitude la date de la naissance d' Ahmed on pense qu'il est né avant que sa famille soit déplacée à Damas. Encore il est peu clair quand exactement la famille s'est déplacée encore au Caire mais Ahmed était surnommé Al-MISRI ce que veut dire " l’ Egyptien " donc il est probable qu'il ait habité au Caire quand il était très jeune. Ça vaut la peine de dire un mot ou deux au sujet de Yusuf in Ibrahim , le père d' Ahmed , puisque des disciples ont eu une certaine difficulté de trancher entre les textes dus au père ou dus au fils, ou peut-être c’était un travail commun des deux. Yusuf ibn Ibrahim était connu pour avoir été un membre d'un groupe de disciples qui doit avoir fourni un environnement intellectuel très fort pour Ahmed . Bien qu’il avait écrit un texte sur la médecine

11. Arabic Numerals He also wrote on space and time. ahmed ibn yusuf alMisri (835-912 AD), his workson ratio and proportion, and geometry of circles were translated into Latin. http://www.arabicnumerals.cwc.net/

By M Erhayiem The IBM World Book Encyclopaedia raises the question as how the Arabic Numerals originated (!?) as appeared in an article contributed by Nadine L. Verderber, Ph.D., Prof. of Mathematics, Southern Illinois Univ., Edwardsville. The article states, as such, "Scholars do not know how Arabic numerals originated." "The Hindus developed the zero sometime after A.D. 600." The World Book Multimedia Encyclopaedia has largely ignored the work of the Scientists during the Islamic and the Arabic medieval era. The contributions of the Muslims and Arabs in the field of Mathematics were very significant. The great Harvard historian of science, Professor George Sarton wrote in his monumental Introduction to the History of Science[4]: "From the second half of the 8th to the end of the 11th century, Arabic was the scientific, the progressive language of mankind... When the West was sufficiently mature to feel the need of deeper knowledge, it turned its attention, first of all, not to the Greek sources, but to the Arabic ones." O'Connor and Robertson[2] published various articles about the contribution of those forgotten brilliance. Muhammad ibn Musa al-Khawarizmi Yaqub ibn Ishaq al-Kindi (801-873 A.D.), a Philosopher and Mathematician, who wrote many works on arithmetic, including: the numbers, relative quantities, measuring proportion and time, and numerical procedures. He also wrote on space and time.

12. Apronyms: AHMED IBN YUSUF A Propos Restressing Of Notions Your Meaning Shares. APRONYM. 100%, AHMEDIBN YUSUF, Arab-Hatched Mathematician, Expanded Discussed Important Book. http://acronyms.co.nz/gonym.php?ap=AHMED IBN YUSUF

13. KADINLAR.COM / CÝNSELLÝK ahmed ibn yusuf Al Tayfashi (ölüm 1253) Nuzhatal-Albab da (Kalplerin Zevki)sefahat konusunda müstehcen bir gözlemler koleksiyonunu, siirleri ve http://www.kadinlar.com/cinsellik/arap_escinsel.htm

CÝNSELLÝK ESKÝ ARAP TOPLUMUNDA EÞCÝNSELLÝK VE ÝSLAM Erkek merkezli, çok eþli ve kadýnlarýn aþaðýlandýðý Arap toplumu, Ýslam dininden sonra da özünde ayný kaldý. Arap toplumu Ýslam’ý coþkuyla kabul ettikten sonra insanlarýn davranýþlarý ahlaki kesinlemelerle kuþatýldý; gerçekte pek fazla deðiþim olmasa da seks hakkýnda yazýlanlar ve söylenenler deðiþti. Muhammet M.S. 570’de Mekke’de doðdu ve 632’de yine orada öldü. Kuran’da Allah’ýn insaný topraktan yarattýðý yazýlýdýr, fakat bunun yanýnda yine Kur'an’da insanýn döl damlalarýndan ve kan pýhtýsýndan yaratýldýðý da yazýlýdýr. Ýbranilerin Yahova’sýnýn aksine, Allah cinsel bir varlýktýr ve Ýslam sekse büyük deðer verir. Üstelik ilk Hýristiyanlarýn çileciliðinin tersine Muhammet bekarlýða karþýydý ve evliliðin tüm erkeklerin yükümlülüðü olduðunu ve Tanrý’nýn en önemli emri olduðunu öðütlemiþti. Tek eþle yaþayamayan erkekler için çok eþlilik makbuldü. Ancak bir erkek kaç karýsý olursa olsun hepsine nezaketle muamele etmeliydi. (Nezaketin nasýl tanýmlandýðý ise bir baþka sorundu.) Muhammet kadýnlarý etkileyen bazý eski Arap geleneklerinde bir takým cüzi iyileþtirmeler yaptý. Kadýnlar baba ocaðýndan çeyiz götürme haklarýný muhafaza ettiler. Anal iliþki ve oral genital temas için kadýnlarýn rýzasý þarttý. (Ancak kýzlar oniki ya da onüç yaþýndayken evlendiriliyordu.) Zina ile suçlanan kadýnýn cezasý ölümse de, suçlamayý kanýtlamak için dört tanýk göstermek gerekiyordu. Kadýnlar her zaman erkekler için zararlý olabilecek fazlasýyla erotik varlýklar olarak görülüyordu. Gerek erkekte gerek kadýnda çýplaklýk müstehcendi, ancak bir kadýnýn vücudunun herhangi bir bölümü kocasý dýþýnda birisi tarafýndan görülmemeliydi. Bu yüzden, kadýnlar dýþarýda tümüyle örtülü halde gezerlerdi. Erkek konuklar eve geldiðinde tüm kadýnlar köþeye çekilip, bir perdenin ardýnda durmak zorundaydýlar.

14. Mathematician Astrologers Online Resources Astrologers The most famous astrologers were Abu Bakr (Albubather),ahmed ibn yusuf, and Ibn investigations on specific gravity. http://www.tarotuk.co.uk/uk-tarot/pages/mathematician-astrologers.html

mathematician astrologers mathematician astrologers Best mystical websites and information mathematician astrologers More mathematician astrologers Sites: The Best mathematician astrologers websites All the mathematician astrologersinformation you'll be looking for is here. We've searched the information super highway as much as possible to give you, in our opinion, the best mathematician astrologerssites on the internet today for mystics, psychics, tarot readers and horoscopes. Review the links below to help you in your efforts to find the information and insight you're looking for. Recommended mathematician astrologers Site: Tarot UK for Psychics and Tarot in UK, USA and Ireland Experienced and accurate psychics and tarot readings from sympathetic and intiuitive psychics. Lots of mystical information and assistance with life's problems. Other mathematician astrologers Resources: Vedic Astrology ... Beta Arietis ). Another great astronomer- mathematician Aryabhata wrote treatises on Spherical Astronomy ... Venus Seminal Energy. Medical astrologers of yore could discern the cause of ...

15. MuslimHeritage.com - Topics It is interesting to note that 600 years before Braille ALI IBN ahmed ibn yusufIBN ALKHIZR AL-AMIDI, a Syrian Muslim, who died in 1314 CE was an expert in http://www.muslimheritage.com/topics/default.cfm?&ArticleID=367

16. The Time Of Al-razi Woepcke L algebra d Omar Alkhayyami (2, 96 sq., Paris, 1851). ahmed ibn yusufAbu Ja far ahmed ibn yusuf ibn Ibrahim alDaya al Misri, ie, the Egyptian. http://www.alchemywebsite.com/islam14.html

This is the mirror of the alchemy web site www.levity.com/alchemy History of Islamic Science 3 Based on the book Introduction to the History of Science by George Sarton (provided with photos and portraits) Edited and prepared by Prof. Hamed A. Ead These pages are edited by Prof. Hamed Abdel-reheem Ead, Professor of Chemistry at the Faculty of Science -University of Cairo, Giza, Egypt and director of the Science Heritage Center E-mail: ead@frcu.eun.eg Web site: http://www.frcu.eun.eg/www/universities/html/shc/index.htm Back to Islamic Alchemy Back to reference library The Time of Al-Razi Second Half of Ninth Century The whole ninth century was essentially a Muslim century. This more clear in the second half than of the first, since all the scientific leaders were Muslims, or at any rate were working with and for Muslims and wrote in Arabic. Cultural Background Abbasid Caliph Al-Mutawakkil (847-861) continued to protect men of science, chiefly the physicians, and he encouraged the school of translators headed by Hunain ibn Ishaq. Da ud al-Zahiri founded a new school of theology, based upon a more literal interpretation of the Qur'an; however, did not survive very long. Muslim published a new collection of traditions, arranged according to legal topics, like Bukhari's, but more theoretical.

17. Famous Mathematicians With An I Mansur ibn Iraq Hunayn ibn Ishaq ahmed ibn yusuf Ibrahim ibn Sinan AlbertIngham Kiyosi Ito Sir James Ivory Kenkichi Iwasawa Skokichi Iyanaga, http://www.famousmathematician.com/az/mathematician_I.htm

Mathematicians - I Mansur ibn Iraq Hunayn ibn Ishaq Ahmed ibn Yusuf Ibrahim ibn Sinan Albert Ingham Kiyosi Ito Sir James Ivory Kenkichi Iwasawa Skokichi Iyanaga Send mail to webmaster@famousmathematician.com with questions or comments about this web site. www.famousmathematician.com Last modified: January 23, 2003

18. À§´ëÇѼöÇÐÀÚ ¸ñ·Ï Milan, Habsburg Empire (now Italy) Died 9 Jan 1799 in Milan, Habsburg Empire (nowItaly) Ahmed, ahmed ibn yusuf Born 835 in Baghdad (now in Iraq) Died 912 http://www.mathnet.or.kr/API/?MIval=people_seek_great&init=A

19. Education World® - *Math : Mathematicians : General Resources Adelard of Bath. Adler August. Adrain Robert. Adrian Marie Legendre (1752 1833) .Adrianus Romanus. Aepinus Franz. Agnesi Maria. Ahlfors Lars. ahmed ibn yusuf. Ahmes. http://db.education-world.com/perl/browse?cat_id=2843

20. Index I (and Ibn, Ingen) HI HY (PREV) Ibe ibn Ice Nabit (Nebajoth) ibn ISHMAEL. ahmed ibn ISMA'IL Ya'rub ibn YASHJUB. Arib ibn YASHUB. Mujahid ibn yusuf of DENIA http://freepages.genealogy.rootsweb.com/~jamesdow/pedix/peix55.htm

OAS_AD('Top'); I (and ibn, ingen) (Index to JDA's Family Tree) HI - HY (PREV) Ibe Ibn Ice ... (NEXT) J Select a (different) Surname Index Select a (different) Forename Index A - Z Aa-Ak Al Am-Ao Ap-Aq Ar-As At-Az Ba-Bd Be Bi-Bl Bo Br Bu-By Ca Ce-Ch Ci-Cl Co Cr-Cz Da-Dh Di-Do Dr-Dy Ea-Ek El-Eo Ep-Ey Fa-Ff Fi Fj-Fo Fr-Fy Ga-Ge Gh-Go Gr-Gy Ha He Hi-Hy I J K La Le-Ll Lo Lu-Ly Ma (Mc) Me-Mi Mo Ms-My Na-Nj No-Nu O Pa Pe Pf-Pl Po Pr-Py Q Ra-Rj Ro-Ry Sa Sc Se-Sh Si-Sr St Su-Sz Ta-Th Ti-To Tr-Tz U Va Ve Vi-Vy Wa We Wh-Wy X Y Z A - Z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z IBELIN Alice IBELIN Alice IBELIN Baldwin II de RAMLEH (1133? - 1188+) ; aka Baudouin IBELIN Balian (II; de NABLUS) d' IBELIN Balian III IBELIN (1209? - 1247) ; or: his brother Guy IBELIN, q.v. Balian `le Vieux' IBELIN (? - 1151?) ; `le Francais' Balian IBELIN (? - 1302?) ; Seneschal of Cyprus Barisanus d' IBELIN Baudouin de IBELIN Baudouin IBELIN Echive IBELIN ... Guy IBELIN (? - 1308?) ; Seneschal of Cyprus Heloise (Helvis) d' IBELIN (1307? - 1347) ; (2nd wife) Helvis IBELIN Isabella de IBELIN Isabelle IBELIN Isabelle IBELIN (by 1235 - ?)

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

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