Abd al-Qahir Al-Baghdadi

Full name: 
Abū Mansūr Abd al-Qāhir Ibn Tāhir Ibn Muhammad Ibn ‘Abdallāh al-Tamīmī al-Baghdādī
Arabic name: 
أبو منصور عبد القاهر بن طاهر بن محمد بن عبد الله التميمي البغدادي
Latin name: 
Machometus Bagdedinus
Date of birth: 
980
Date of death: 
1037

Abd al-Qahir al-Baghdadi was an Arab mathematician from Baghdad who is best known for his treatise al-Takmila fi'l-Hisab. It contains results in number theory, and comments on works by al-Khwarizmi which are now lost.

See al-Baghdadi's scientific biography in MacTutor History of Mathematics for more information.