Find ellipse area
A "potential" ellipse is described by the coefficients of its quadratic equation.
a x^2 + b xy + c y^2 + d x + e y + f = 0
the vector of coefficients, [a, b, c, d, e, f] should be used as the input.
For example, for a circle, x^2 + y^2 - 1 =0, the input should be [1 0 1 0 0 -1]. And find_ellipse_area([1 0 1 0 0 -1]) will return pi, the area of the circle.
If the quadratic equation doesn't represent an eclipse (for example, a hyperbola, instead), the function will return NaN.
Citation pour cette source
Samuel Cheng (2024). Find ellipse area (https://www.mathworks.com/matlabcentral/fileexchange/45787-find-ellipse-area), MATLAB Central File Exchange. Récupéré le .
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