The Useless Number - Numberphile

by Jay, 5 years ago
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One of the first people to stumble over imaginary numbers (namely the square root of -15) thought it was "subtle" and "useless". Featuring Barry Mazur. Extra footage from this interview: Barry's book on this topic: Barry on scale and similarity: NUMBERPHILE Website: Numberphile on Facebook: Numberphile tweets: Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): Videos by Brady Haran Support us on Patreon: Brady's videos subreddit: A run-down of Brady's channels: Sign up for (occasional) emails: