Talk:Quadratic equation/Advanced: Difference between revisions
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imported>Peter Jackson (New page: "Fortunately, there exists a simple closed formula ..." Well, yes, but there exists a complicated closed formula for cubic equations, but that's not all that fortunate as in the general ca...) |
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Revision as of 13:04, 4 December 2008
"Fortunately, there exists a simple closed formula ..." Well, yes, but there exists a complicated closed formula for cubic equations, but that's not all that fortunate as in the general case it requires finding the cube root of a complex number, which is not a straightforward operation like the square root. In fact oit seems to be much the same as solving a cubic equation. I think the closed form isn't the relevant point. Peter Jackson 18:04, 4 December 2008 (UTC)