View source: R/quadraticFormToMatrix.R
quadraticFormToMatrix | R Documentation |
Transformation of the quadratic conic representation into the matrix representation.
quadraticFormToMatrix(v)
v |
a (6 \times 1) vector of the parameters (a, b, c, d, e, f) of the quadratic form ax^2 + bxy + cy^2 + dxz + eyz + fz^2 = 0. |
A (3 \times 3) matrix representation of the conic (symmetric matrix).
v <- c(2,2,-2,-20,20,10) quadraticFormToMatrix(v)
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