In the plane, a closed curve is a curve with no endpoints and which completely encloses an area.

# Closed Curve

## See also

Curve, Jordan Curve, Simple Curve## Explore with Wolfram|Alpha

## References

Krantz, S. G. "Closed Curves." §2.1.2 in*Handbook of Complex Variables.*Boston, MA: Birkhäuser, pp. 19-20, 1999.

## Referenced on Wolfram|Alpha

Closed Curve## Cite this as:

Weisstein, Eric W. "Closed Curve." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/ClosedCurve.html