Phi is the Greek letter that represents the mathematical constant known as the Golden Ratio.
Artwork
Phi in Art
The Golden Section in Art, Architecture and Music – Examples of Phi is objects of beauty
Calculating Phi
Phi can be used to calculate the nth number in the Fibonacci sequence using the following formula:
Digits of Phi
Phi to 20,000 places – The longest Phi number on the net
University of Arizona – Another site for broswing the digits of Phi
Phi to 1000 decimal places:
1.618033988749894848204586834365638117720309179805762862135448 622705260462818902449707207204189391137484754088075386891752 126633862223536931793180060766726354433389086595939582905638 322661319928290267880675208766892501711696207032221043216269 548626296313614438149758701220340805887954454749246185695364 864449241044320771344947049565846788509874339442212544877066 478091588460749988712400765217057517978834166256249407589069 704000281210427621771117778053153171410117046665991466979873 176135600670874807101317952368942752194843530567830022878569 978297783478458782289110976250030269615617002504643382437764 861028383126833037242926752631165339247316711121158818638513 316203840052221657912866752946549068113171599343235973494985 090409476213222981017261070596116456299098162905552085247903 524060201727997471753427775927786256194320827505131218156285 512224809394712341451702237358057727861600868838295230459264 787801788992199027077690389532196819861514378031499741106926 088674296226757560523172777520353613936
General Information
Examples of the appearance of Phi
Examples of the appearance of Phi in Nature
GoldenNumber – An exploration of the mathematical constant Phi
History of Phi
GoldNumber – A site dedicated to providing you with the “phinest” information on The Golden Section, Ratio. or Mean.
Interview
Mario Livio – The author of The Golden Ration: The Story of Phi The World’s Most Astounding Number talks about his new book on NPR’s All Things Considered
Math behind Phi
Hypatia Lovers – The geometry behind the divine proportion
Merchandise
Nautilus Jewelry – The pendant is based on the structure of the Nautilus shell. The Nautilus shell is one of the known shapes that represent the golden mean number.
Software
PhiMatrix – software is designed to unveil the phi proportions that can be found throughout life and the universe.
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