| AtoG | Conversion of algebraic parameters to geometric parameters |
| calculateCircle | Generate points from a circle |
| calculateEllipse | Generate points from a ellipse |
| CircleFitByKasa | Algebraic circle fit (Kasa method) |
| CircleFitByLandau | Geometric circle fit (minimizing orthogonal distances) by Landau algorithm |
| CircleFitByPratt | Algebraic circle fit by Pratt |
| CircleFitBySpath | Geometric circle fit by Spath |
| CircleFitByTaubin | Algebraic circle fit (Taubin method) |
| conic2parametric | Linear ellipse fit using bookstein constraint |
| ellipse.l | Formulas for the ellipse |
| EllipseDirectFit | Algebraic ellipse fit method by Fitzgibbon-Pilu-Fisher |
| ellipseEccentricity | Formulas for the ellipse |
| EllipseFitByTaubin | Algebraic ellipse fit by Taubin |
| ellipseFocus | Formulas for the ellipse |
| ellipseRa | Formulas for the ellipse |
| ellipseRp | Formulas for the ellipse |
| ellipticity | Formulas for the ellipse |
| estimateInitialGuessCircle | Estimate Initial Guess Circle values |
| fit.conicLMA | Fitting a conic to a given set of points (Implicit method) |
| fit.ellipseLMG | Fitting an ellipse using Implicit method |
| fit.ellipseLMG.H | Fitting an ellipse using Implicit method |
| fitbookstein | Linear ellipse fit using bookstein constraint |
| fitggk | Linear ellipse fit using bookstein constraint |
| GtoA | Conversion of geometric parameters to algebraic parameters |
| JmatrixLMA | Compute the Jacobian matrix using algebraic parameters |
| JmatrixLMG | Compute the Jacobian matrix using geometric parameters |
| LMcircleFit | Geometric circle fit (minimizing orthogonal distances) based on the Levenberg-Marquardt method |
| LMreducedCircleFit | Geometric circle fit (minimizing orthogonal distances) based on the Levenberg-Marquardt method |
| Residuals.ellipse | Projecting a given set of points onto an ellipse |
| Residuals.hyperbola | Projecting a given set of points onto an hyperbola |
| Residuals.parabola | Projecting a given set of points onto an parabola |
| ResidualsG | Projecting a given set of points onto an ellipse |