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Re: Quadratic Equations
Posted:
Apr 9, 1996 8:09 PM


Jeffrey:
My understanding is that it is related to the notion of "quadrature", meaning to turn into a square (foursided). For if x represents a linear segment then x^2 should be represented by a quadrangular region. I'm sure others will provide more detail and correct me if I'm wrong.
x x^2       >         
Sandy UT San Antonio
On Tue, 9 Apr 1996, Jeffrey Darrow wrote:
> Today I had a student in my college algebra class ask me why > "Quadratic Equations" are so named. If we have a polynomial of > degree 3 set equal to zero, we call it a cubic equation and that > makes sense to these students. However, this particular student is > curious because she sees "QUAD" in quadratic and thinks of four, > yet the polynomial in such an equation is only of degree 2. I've > never encountered this question before and I was at a loss for an > explanation. Does anyone know the origin of the term "quadratic > equation"? I would be very grateful to receive an answer. > > > Thank you in advance. > > Jeff Darrow > Idaho State University > >



