Mohammed Al-Khawarizmi

(person)(ca. 780 - ca. 850 CE) An astronomer, geographer andmathematician, born in Khwarizm (modern Khiva), south of theAral Sea. Khawarizmi founded algebra and algorithms(named after him), synthesised Greek and Hindu knowledge,introducing the Indian system of numerals (now known as Arabicnumerals), developed operations on fractions, trigonometrictables containing the sine functions, the calculus of two errors and the decimal system, explained the use of zero,perfected the geometric representation of conic sections,collaborated in the degree measurements aimed at measuring ofvolume and circumference of the Earth and produced the firstmap of the known world in 830 CE.

Muslim Heritage.com.

单词	mohammed al-khawarizmi
释义	Mohammed Al-Khawarizmi Mohammed Al-Khawarizmi (person)(ca. 780 - ca. 850 CE) An astronomer, geographer andmathematician, born in Khwarizm (modern Khiva), south of theAral Sea. Khawarizmi founded algebra and algorithms(named after him), synthesised Greek and Hindu knowledge,introducing the Indian system of numerals (now known as Arabicnumerals), developed operations on fractions, trigonometrictables containing the sine functions, the calculus of two errors and the decimal system, explained the use of zero,perfected the geometric representation of conic sections,collaborated in the degree measurements aimed at measuring ofvolume and circumference of the Earth and produced the firstmap of the known world in 830 CE. Muslim Heritage.com.
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