Description Usage Arguments Details Value Author(s) See Also Examples
Find the center of a conic.
1 | conicCenter(x)
|
x |
a 6-length vector or a symmetric 3x3 matrix |
The conicCenter
function calculates the coordinates of the center of
a conic specified by its coefficients or by its symmetric matrix.
A two-elements vector containing the coordinates of the center. If the conic has no center the function raises an error.
Bernard Desgraupes
bernard.desgraupes@u-paris10.fr
University of Paris Ouest - Nanterre
Lab Modal'X (EA 3454)
conicAsymptotes
,
conicAxes
,
conicMatrix
,
conicPlot
1 2 3 4 5 6 7 8 9 | # Ellipse
# Equation: 2*x_1^2 + 2*x_1*x_2 + 2*x_2^2 - 20*x_1 - 28*x_2 + 10 = 0
v <- c(2,2,2,-20,-28,10)
conicCenter(v)
# Hyperbola
# Equation: 2*x_1^2 + 2*x_1*x_2 - 2*x_2^2 - 20*x_1 + 20*x_2 + 10 = 0
v <- c(2,2,-2,-20,20,10)
conicCenter(v)
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