Diego Rattaggi 🇨🇭
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Diego Rattaggi 🇨🇭
@diegorattaggi
Mathematician. ex-MTT coin flipper. #mathiratti What fraction is shaded? #wfis #OEPF #phibonacci. Federer H2H since 2007. https://t.co/yYAf9lLc8K
Switzerland Katılım Ağustos 2013
851 Takip Edilen9.6K Takipçiler
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My solution to a crystal puzzle by @diegorattaggi
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Triangles and regular pentagon. 1/10 is Cyan

English
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Diego Rattaggi 🇨🇭@diegorattaggi
On this day 125 years ago, Donald Percy Dalzell (known as D. P. Dalzell, 30.08.1898-25.03.1988) was born in British Guiana. He is famous for his integral proving 22/7 > π, published in 1944. en.wikipedia.org/wiki/Proof_tha… See also twitter.com/arXiv_math_CA/… #mathiratti #DPDalzell #Guyana
QME
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