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Theon of Alexandria was a Greek mathematician and scholar. He is credited with editing and arranging Euclid's prominent work Elements. He also wrote commentaries on works by Ptolemy and Euclid. Theon of Alexandria's daughter Hypatia also went on to become a famed mathematician.
Taher Elgamal is an Egyptian entrepreneur and cryptographer. Widely regarded as the father of SSL, Elgamal is best known for his work at Netscape Communications Corporation where he developed Secure Sockets Layer (SSL) which helped establish a secure and private communications on the Internet. In 2019, Taher Elgamal was honored with the prestigious Marconi Prize along with Paul Kocher.
Menelaus of Alexandria was a Greek astronomer and mathematician. Sphaerica, his only book to have survived in the form of an Arabic translation, deals with the geometry of the sphere and introduces the concept of spherical triangle. The Arabic version of the book was translated again by Francesco Maurolico, a 16th century mathematician and astronomer.
