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单词 Cubic curve
释义

Cubic curve

英语百科

Cubic plane curve

(重定向自Cubic curve)
A selection of cubic curves. Click the image to see information page for details.
Singular cubic y2 = x2 · (x + 1). A parametrization is given by t → (t2 − 1, t · (t2 − 1))
Example of Thomson cubic (black curve). X is on the cubic, such that the isogonal conjugate of X (X') is on the line X(2)-X.

In mathematics, a cubic plane curve is a plane algebraic curve C defined by a cubic equation

applied to homogeneous coordinates x:y:z for the projective plane; or the inhomogeneous version for the affine space determined by setting z = 1 in such an equation. Here F is a non-zero linear combination of the third-degree monomials

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更新时间:2025/6/23 1:29:28