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The sexagesimal system. Which is considered one of the major fields af arithmetic during the Islamic period has widely been applied in astronomical calculations up to present. This system s also used in precise mathematical calculations . like deriving the spuare and cube roots of non- sexagesimal numbers . muslim mathematicians used sexagesimal numeration system to write decimal place values . before the development of the decimal numeration system to a fully positional one.
The sexagesimal numeration system was invented and developed by the Sumerians and dates back to around 2000 b.c
This article contains the aforementioned text and some points clarifying its terminology and methodology . the al –Tusos work includes reasoning behind the method of sexagesimal multiplication and division on the basis of proportion.