This is an alphabetical index of articles related to curves used in mathematics. * Acnode * Algebraic curve * Arc * Asymptote * Asymptotic curve * Barbier's theorem * Bézier curve * Bézout's theorem * Birch and Swinnerton-Dyer conjecture * Bitangent * Bitangents of a quartic * Cartesian coordinate system * Caustic * Cesàro equation * Chord (geometry) * Cissoid * Circumference * Closed timelike curve * concavity * Conchoid (mathematics) * Confocal * Contact (mathematics) * Contour line * Crunode * Cubic Hermite curve * Curvature * Curve orientation * Curve fitting * Curve-fitting compaction * Curve of constant width * Curve of pursuit * Curves in differential geometry * Cusp * Cyclogon * De Boor algorithm * Differential geometry of curves * Eccentricity