Ahmad ibn 'Abdallah al-Marwazi, known as Habash al-Hasib (Persian: حبش الحاسب, lit. 'Abyssinian calculator', died c. 869) was a Persian astronomer, geographer...

people of African descent in India and Pakistan Habash al-Hasib al-Marwazi, a Persian astronomer George Habash, a Palestinian political leader, ex-Secretary-General...

Abu Ja'far ibn Habash was a Persian astronomer. He was most likely a son of Habash al-Hasib. Since his father died after 864 AD at the age of 100, it can...

astronomers Habash al-Hasib al-Marwazi and Ahmad al-Farghani, the polymath al-Jahiz, and the distinguished Arab mathematician and philosopher al-Kindi, who...

and its solution, however, first appeared in a 9th-century work by Habash al-Hasib al-Marwazi, which dealt with problems of parallax. The equation has played...

in Turkmenistan. It may refer to: ʿĪsā al-Marwazī (fl. 9th century), Syriac lexicographer Habash al-Hasib al-Marwazi (died after 869), Persian astronomer...

scholars, including Habash al-Hasib (active in Damascus and Baghdad c. 850), Al-Nayrizi (Baghdad, c. 900), Ibn Yunus (10th–11th century), Ibn al-Haytham (11th...

Iraq, by Arabic astronomers during time of Al-Mamun 825–35 – Al-Shammisiyyah observatory by Habash al-Hasib al-Marwazi in Baghdad, Iraq 10th century – Large...

{\displaystyle \sin x={\frac {y}{\sqrt {1+y^{2}}}}} Al-Battānī used the Iranian astronomer Habash al-Hasib al-Marwazi's idea of tangents to develop equations...

ibn Mūsā al-Khwārizmī produced accurate sine and cosine tables. He was also a pioneer in spherical trigonometry. In 830 AD, Habash al-Hasib al-Marwazi...

astronomy, reforming the production of sine tables. Khwarizmi and Habash al-Hasib later produced a set of trigonometric tables. A chord of a circle is...

mathematician Habash al-Hasib al-Marwazi produced the first table of cotangents. By the 10th century AD, in the work of Persian mathematician Abū al-Wafā' al-Būzjānī...

used in solving triangles. Al-Khwārizmī (c. 780–850) produced tables of sines and cosines. Circa 860, Habash al-Hasib al-Marwazi defined the tangent...

continued to use al-Khwarizmi's prime meridian.: 188  Other prime meridians used were set by Abū Muhammad al-Hasan al-Hamdānī and Habash al-Hasib al-Marwazi at...

–c. 890), physician Marvazi, Abu Taher (12th century), philosopher Habash al-Hasib al-Marwazi, mathematician, astronomer, geographer Masawaiyh (777–857)...

them next to the Toquz Oghuz, while Al-Biruni claimed that the Qun were further east of them. Habash al-Hasib al-Marwazi writes that the Qun came from...

causes the Moon to shine. Persian astronomer Habash al-Hasib al-Marwazi conducted various observations at the Al-Shammisiyyah observatory in Baghdad between...

months have 29 days, except in a leap year when the 12th and final month Dhu al-Hijjah has 30 days. In its most common form there are 11 leap years in a 30-year...

maps. In the 9th century, the Persian mathematician and geographer, Habash al-Hasib al-Marwazi, employed spherical trigonometry and map projection methods...

Ptolemy had done. The Iranian geographers Abū Muhammad al-Hasan al-Hamdānī and Habash al-Hasib al-Marwazi set the Prime Meridian of their maps at Ujjain...

writing under this name, pioneered organic chemistry 766 to 869 – Habash al-Hasib al-Marwazi, the first mathematician to describe the trigonometric ratios:...

century), astronomer and mathematician Habash al-Hasib al-Marwazi, mathematician, astronomer, geographer Ayn al-Quzat Hamadani, jurisconsult, mystic, philosopher...

al‐Sindhind of Khwārizmī, the Mumtaḥan zīj of Yahya ibn Abi Mansur, two zījes of Habash al-Hasib al-Marwazi, and the Zīj al‐hazārāt of Abu Ma'shar al-Balkhi...

of the delirious. The Persian Habash al-Hasib al-Marwazi states that "the Rūm are indisputable masters in al-ṣanā"i" al-mihaniyya (the applied arts)"...

behalf of Palestinians" may be the reason for his imprisonment. George Habash – politician, founder of the PFLP and the Arab Nationalist Movement Nayif...

Jordanian Parliament) Raja Shehadeh (Orwell Prize-winning author and lawyer) Hasib Sabbagh (businessman, activist, and philanthropist – one of the three founders...

Academy for the Advancement of Science.. Studies cited are: M. F. Hammer, et al. (2000). "Jewish and Middle Eastern non-Jewish populations share a common...