View Full Version : Etiology of "Quadratic" applied to Quad Formula
09-02-2003, 05:07 PM
How did the quadratic equation and formula get its names? If "quad" means 4, how does this number apply to the equation? Was "Quad" once used to mean 2?
MC Master of Ceremonies
09-02-2003, 05:19 PM
'Quad' as in 'square' as in squared, simlairly cubic equations start with and x cubed term.
09-02-2003, 07:44 PM
And if you want to see the quadratic formula or solve quadratics, here's a link:
Here's a link for solving cubic equations
And relevant to the OP, a 4th power equation is called a "quartic" (since you were wondering when that '4' would enter the picture).
And yes there's a calculator for those too:
Earl Snake-Hips Tucker
09-02-2003, 09:14 PM
As a side question, I'd also like to know the etymology of "etiology" as it relates to quadratic equations.:D
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