With this button, the curve type is constrained to be a smooth line with tension.

Draws curves

Bézier Curve by its Control Points

The line tangent to a curve

The center of the osculating circle to a curve

curve

Squiggly

Curve

Curved

Curve Mode

Curves?

Evolute of a curve

Tangent to This Curve

Bézier Quadratic by its Control Points

Select a point to be a control point of the new Bézier curve...

Center of Curvature of This Curve

Reset curve to linear

Evolute of this curve

Directrix of a Conic

The directrix line of a conic.

Asymptotes of a Hyperbola

A curve's a curve, a plane's a plane, and the two won't mix.

A hyperbola constructed by its focuses and a point that pertains to it

CCurve

Hyperbola

Contributed the Bézier curves and related icons.

Construct a Bézier curve by giving its control points

Construct a Bézier curve with this control point

Tangent to This Conic

Tangent to This Cubic Curve

Every line... every curve.

With this button, you can draw your curve free hand with the mouse.

Rational Bézier Quadratic by its Control Points

Rational Bézier Curve by its Control Points

Select a point to be a control point of the new cubic Bézier curve...

Center of Curvature of This Conic

Center of Curvature of This Cubic Curve

Adjust Curves

Adjust Curve

Curves Adjust...

Luminosity Curve

Cubic

Quadratic Spline

Cubic Spline

C Curve