Ibn Cali Qassab

Ibn Cali Qassab, wanda aka fi sani da sunan Ahmad Muhammad ibn Ali ibn Muhammad al-Karji al-Qassab, masani ne a fagen ilimin lissafi. Ya kasance daya daga cikin malaman da suka yi fice wajen gudanar da bincike da kuma rubuce-rubuce kan ilimin algebra da geometry. Ayyukansa sun hada da juzu'i kan ilimin juyin halitta na lambarai da kuma wasu ayyukan da suka tattauna batutuwan sarrafa ruwa. Ya shahara sosai saboda gudummawarsa wajen fassara da ci gaban ilimin lissafi a zamaninsa.