Eye of Horus fractions were written as the sum of two or more unit fractions (a fraction with 1 as the numerator), with scribes possessing tables of answers (see Rhind Mathematical Papyrus 2/n table). Thus instead of , one would write + . Different parts of the Eye of Horus were thought to be used by the ancient Egyptians to represent one divided by the first six powers of two: The Rhind Mathematical Papyrus contains tables of "Horus Eye Fractions". Studies from the 1970s to this day in Egyptian mathematics have clearly shown this theory was fallacious and Jim Ritter definitely showed it
Horus Sa Horus Sa Horus Sa (also Horus Za, Sa and Za) was a possible early Egyptian pharaoh who may have reigned during the 2nd or 3rd dynasty of Egypt. His existence is disputed, as is the meaning of the artifacts that have been interpreted as confirming his existence. Horus Sa is known from vessel fragments with black ink inscriptions showing his name. These vessels were found in the east galleries beneath Djoser's pyramid at Saqqara. The inscriptions are short and written in cursive handwritings. In all cases the name "Horus Sa" does not appear within a serekh and its identification as