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Haven't watched the whole thing, but scrolling down and reading his closing makes me not want to watch it. He complicates the simple procedure "Completing the
by gd9 13y ago
Haven't watched the whole thing, but scrolling down and reading his closing makes me not want to watch it. He complicates the simple procedure "Completing the Square" (http://en.wikipedia.org/wiki/Completing_the_square http://en.wikipedia.org/wiki/Completing_the_square). Take half of the b coefficient, square it, and add it to both sides gives x^2 + 10x + 25 = 64 or the completed square (x+5)^2 = 64 or x+5 = 8 or x=3.
- dcre 13y agoThat's a quote from al-Khwārizmī[1], the medieval Persian mathematician whose name the word "algorithm" comes from. Victor didn't complicate the process. He used that quote to illustrate his claim that it's precisely because of innovations in symbolic representation (i.e., representing the equation as x^2 + 10x + 39) that you are able to think of the process as simple. [1] http://en.wikipedia.org/wiki/Mu%E1%B8%A5ammad_ibn_M%C5%ABs%C4%81_al-Khw%C4%81rizm%C4%AB http://en.wikipedia.org/wiki/Mu%E1%B8%A5ammad_ibn_M%C5%ABs%C...