Abu Bakr al-Hassar, 11th century Muslim mathematician who first used the fraction bar, also called the vinculum.
Abu Dhabi | Abu Ghraib | Mount Abu | Abu Bakr | Mumia Abu-Jamal | Abu Zubaydah | Bakr | Battle of Abu Klea | Abu Sayyaf | Abu Ghraib torture and prisoner abuse | Ahmed Omar Abu Ali | Abu Qubays | Abu Musab al-Zarqawi | Abu Mu'az al-Jeddawi | Abu Hamad | Abu Sufyan ibn Harb | Abu Omar al-Kurdi | 2010 Abu Dhabi Grand Prix | Tell Abu Hureyra | Sami Abu Zuhri | Abu Sa'id Mirza | Abu Sa'id (Ilkhanid dynasty) | Abu Saiba | Abu Mustafa al-Sheibani | Abu Marwan Abd al-Malik I Saadi | Abu'l-Fazl ibn Mubarak | Abu Dhabi (emirate) | Abu Abdullah al-Shafi'i | Abdul-Wahab Abu Al-Hail | Sultan Abu Bakar |
On 26 October 2005, a US warplane struck a suspected insurgent safehouse near the Syrian border in an attempt to kill al-Baghdadi.
The ceremony was also attended by UAE President Khalifa bin Zayed Al Nahyan, Yemeni Foreign Minister Abu Bakr al-Qirbi, and the Secretary General of the Presidency of the Republic, Dr Ali Mansour bin Svaa.
Al-Hassār, a Moroccan mathematician from Fez specializing in Islamic inheritance jurisprudence during the 12th century, first mentions the use of a fractional bar, where numerators and denominators are separated by a horizontal bar.
Sidi Hajjaj Oued Hassar is a small town and rural commune in Kénitra Province of the Grand Casablanca region of Morocco.