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A280189
Version of sexagesimal expansion of sine of one degree given by the Persian mathematician Al-Kashi in the 15th Century.
2
1, 2, 49, 43, 11, 14, 44, 16, 26, 17
OFFSET
1,2
COMMENTS
The fifteenth century persian mathematician Jamshid Al-Kashi was the first to calculate the value of sine of one degree correct to ten sexagesimal places (17 decimal digits) in his Risala al-Watar wa'l Jaib.
LINKS
Mohammad K. Azarian, A Study of Risala al-Watar wa'l Jaib ("The Treatise on the Chord and Sine"), Forum Geometricorum, Volume 15 (2015) 229-242. Mathematical Reviews, MR 3418854 (Reviewed), Zentralblatt MATH, Zbl 1328.01015.
CROSSREFS
KEYWORD
nonn,base,cons,fini,full
AUTHOR
Mohammad K. Azarian, Dec 28 2016
STATUS
approved