Jelaskan Al-Farisi dari Matematik pada zaman pertengahan Islam dalam bahasa melayu

Persian mathematician Al-Farisi (b. 1260) gave a new proof of Thabit ibn Qurra's theorem of amicable numbers, introducing important new ideas concerning factorisation and combinatorial methods. He also gave the pair of amicable numbers 17,296 and 18,416 which have been attributed to Leonhard Euler, but we know that these were known earlier than al-Farisi, perhaps even by Thabit ibn Qurra himself. Apart from number theory, his other major contribution to mathematics was on light.