Al-Jabr wa-al-Muqabilah from whose title came the name "Algebra"
Kitab al-Jam'a wal-Tafreeq bil Hisab al-Hindi (on Arithmatic, which survived in a Latin translation but was lost in the original Arabic)
Kitab Surat-al-Ard (on geography)
Istikhraj Tarikh al-Yahud (about the Jewish calendar)
Kitab al-Rukhmat (about sun-dials)
Explained the use of zero
Developed tables containing the sine functions
Perfected the geometric representation of conic sections
Calculus of two errors
Revised Ptolemy's views on geography
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