When was the quadratic formula created

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Learn more. How was the quadratic formula created? Asked 2 years, 6 months ago. Active 2 years, 6 months ago. Viewed 1k times. Eevee Trainer Tanner I googled completing the square and got this link: mathsisfun.

Add a comment. Active Oldest Votes. Eevee Trainer Eevee Trainer No need to add to the confusion. Pointing out the discriminant needs to be positive for real valued solutions might be worthwhile too. One would argue it is also best to not confuse students by bogging them down with details that aren't relevant to them, until said details are in fact relevant. Nonetheless, I will add some footnotes regarding these. There is no reasonable context in which you work with quadratics yet the sqareroot of a fraction is the fraction of squareroots.

That's the problem I was looking at not imaginary numbers. Imaginary numbers really fix that problem in that the squareroot stops being an actual function or becomes a multi-valued function if you want to call it that so the issue becomes more obvious in my opinion. A new phase of mathematics began in Italy around It was written by Luca Pacioli although it is quite hard to find the author's name on the book, Fra Luca appearing in small print but not on the title page.

In many ways the book is more a summary of knowledge at the time and makes no major advances. The notation and setting out of calculations is almost modern in style: 6.

References show. S Gandz, Studies in Babylonian mathematics. Isoperimetric problems and the origin of the quadratic equations, Isis 32 , - B Hughes, The earliest correct algebraic solutions of cubic equations, Vita mathematica Washington, DC, , - Canaria Cienc.

P Schultz,Tartaglia, Archimedes and cubic equations, Austral. Nauk 36 , - All but strictly necessary cookies are currently disabled for this browser. Turn on JavaScript to exercise your cookie preferences for all non-essential cookies. You can read FutureLearn's Cookie policy here. Category: FutureLearn Local , Learning. Category: Current Issues , General. Category: Digital Skills , Learning , What is.

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Learn more about this course. It is based on al Khwarizmi's technique of completing the square.