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- Abu_Bakr_al-Hassar abstract "Al-Hassar or Abu Bakr Muhammad ibn Abdallah ibn Ayyash al-Hassar was a Muslim mathematician from Morocco, living in the 12th century. He is the author of two books Kitab al-bayan wat-tadhkar (Book of Demonstration and Memorization), a manual of calculation and Kitab al-kamil fi sinaat al-adad (Complete Book on the Art of Numbers), on the breakdown of numbers. The first book is lost and only a part of the second book remains.Al-Hassar developed the modern symbolic mathematical notation for fractions, where the numerator and denominator are separated by a horizontal bar. This same fractional notation appeared soon after in the work of Fibonacci in the 13th century.".
- Abu_Bakr_al-Hassar wikiPageExternalLink index.cfm?ManID=ljs293&Page=1.
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- Abu_Bakr_al-Hassar wikiPageID "28675099".
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- Abu_Bakr_al-Hassar wikiPageOutDegree "14".
- Abu_Bakr_al-Hassar wikiPageRevisionID "607290998".
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:12th-century_Moroccan_people.
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:12th-century_Moroccan_writers.
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:12th-century_mathematicians.
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:Moroccan_mathematicians.
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:Moroccan_writers.
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:Year_of_birth_missing.
- Abu_Bakr_al-Hassar wikiPageWikiLink Category:Year_of_death_unknown.
- Abu_Bakr_al-Hassar wikiPageWikiLink Denominator.
- Abu_Bakr_al-Hassar wikiPageWikiLink Fibonacci.
- Abu_Bakr_al-Hassar wikiPageWikiLink Fraction_(mathematics).
- Abu_Bakr_al-Hassar wikiPageWikiLink Mathematical_notation.
- Abu_Bakr_al-Hassar wikiPageWikiLink Morocco.
- Abu_Bakr_al-Hassar wikiPageWikiLink Numerator.
- Abu_Bakr_al-Hassar wikiPageWikiLink University_of_Pennsylvania.
- Abu_Bakr_al-Hassar wikiPageWikiLinkText "Abu Bakr al-Hassar".
- Abu_Bakr_al-Hassar wikiPageWikiLinkText "al-Hassar, Abu Bakr".
- Abu_Bakr_al-Hassar hasPhotoCollection Abu_Bakr_al-Hassar.
- Abu_Bakr_al-Hassar name "Hassar, Abubakr".
- Abu_Bakr_al-Hassar shortDescription "Moroccan mathematician".
- Abu_Bakr_al-Hassar wikiPageUsesTemplate Template:Cite_journal.
- Abu_Bakr_al-Hassar wikiPageUsesTemplate Template:Morocco-scientist-stub.
- Abu_Bakr_al-Hassar wikiPageUsesTemplate Template:Morocco-writer-stub.
- Abu_Bakr_al-Hassar wikiPageUsesTemplate Template:Persondata.
- Abu_Bakr_al-Hassar description "Moroccan mathematician".
- Abu_Bakr_al-Hassar description "Moroccan mathematician".
- Abu_Bakr_al-Hassar subject Category:12th-century_Moroccan_people.
- Abu_Bakr_al-Hassar subject Category:12th-century_Moroccan_writers.
- Abu_Bakr_al-Hassar subject Category:12th-century_mathematicians.
- Abu_Bakr_al-Hassar subject Category:Moroccan_mathematicians.
- Abu_Bakr_al-Hassar subject Category:Moroccan_writers.
- Abu_Bakr_al-Hassar subject Category:Year_of_birth_missing.
- Abu_Bakr_al-Hassar subject Category:Year_of_death_unknown.
- Abu_Bakr_al-Hassar hypernym Mathematician.
- Abu_Bakr_al-Hassar type Agent.
- Abu_Bakr_al-Hassar type Article.
- Abu_Bakr_al-Hassar type Person.
- Abu_Bakr_al-Hassar type Scientist.
- Abu_Bakr_al-Hassar type Writer.
- Abu_Bakr_al-Hassar type Article.
- Abu_Bakr_al-Hassar type Mathematician.
- Abu_Bakr_al-Hassar type Scholar.
- Abu_Bakr_al-Hassar type Scientist.
- Abu_Bakr_al-Hassar type Writer.
- Abu_Bakr_al-Hassar type Person.
- Abu_Bakr_al-Hassar type Agent.
- Abu_Bakr_al-Hassar type NaturalPerson.
- Abu_Bakr_al-Hassar type Thing.
- Abu_Bakr_al-Hassar type Q215627.
- Abu_Bakr_al-Hassar type Q5.
- Abu_Bakr_al-Hassar type Person.
- Abu_Bakr_al-Hassar comment "Al-Hassar or Abu Bakr Muhammad ibn Abdallah ibn Ayyash al-Hassar was a Muslim mathematician from Morocco, living in the 12th century. He is the author of two books Kitab al-bayan wat-tadhkar (Book of Demonstration and Memorization), a manual of calculation and Kitab al-kamil fi sinaat al-adad (Complete Book on the Art of Numbers), on the breakdown of numbers.".
- Abu_Bakr_al-Hassar label "Abu Bakr al-Hassar".
- Abu_Bakr_al-Hassar sameAs أبو_بكر_الحصار.
- Abu_Bakr_al-Hassar sameAs محمدبن_حصار.
- Abu_Bakr_al-Hassar sameAs m.0czc5k7.
- Abu_Bakr_al-Hassar sameAs Q4116723.
- Abu_Bakr_al-Hassar sameAs Q4116723.
- Abu_Bakr_al-Hassar wasDerivedFrom Abu_Bakr_al-Hassar?oldid=607290998.
- Abu_Bakr_al-Hassar givenName "Abubakr".
- Abu_Bakr_al-Hassar isPrimaryTopicOf Abu_Bakr_al-Hassar.
- Abu_Bakr_al-Hassar name "Abubakr Hassar".
- Abu_Bakr_al-Hassar name "Hassar, Abubakr".
- Abu_Bakr_al-Hassar surname "Hassar".