Great muslim mathematician, astronomer, historian, geographer and musician.
First person who used zero
Composed oldest works on algebra and astronomical tables
Systematized the Greek and Hindu mathematical knowledge
Introduced the method of counting based on numerals and decimal systems for
the first time
Wrote famous book named Hisab-al-jabar wal Muqabla in which he gave analytical
solutions of quadratic and linear equations .This book was used as principal mathematical
textbook, until the 16th century by European universities.
Composed his own astronomical tables known as Zijj (ZJ), which became a
model for astronomical pursuits in East and West.
Kitab-surat-al-ard was a geography book in which he gave an idea about the
shape of the earth