# Arc Command

From GeoGebra Manual

- Arc[ <Circle>, <Point M >, <Point N> ]
- Returns the directed arc (counterclockwise) of the given circle, with endpoints M and N.

- Arc[ <Ellipse>, <Point M>, <Point N> ]
- Returns the directed arc (counterclockwise) of the given ellipse, with endpoints M and N.

- Arc[ <Circle>, <Parameter Value>, <Parameter Value> ]
- Returns the circle arc of the given circle, whose endpoints are identified by the specified values of the parameter.
**Note:**Internally the following parametric forms are used:

Circle: (*r*cos(*t*),*r*sin(*t*)) where*r*is the circle's radius.

- Arc[ <Ellipse>, <Parameter Value>, <Parameter Value> ]
- Returns the circle arc of the given ellipse, whose endpoints are identified by the specified values of the parameter.
**Note:**Internally the following parametric forms are used:

Ellipse: (*a*cos(*t*),*b*sin(*t*)) where*a*and*b*are the lengths of the semimajor and semiminor axes.

**Note:**See also CircumcircularArc command.