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simple closed curve

simple closed curve

7.9
A curved line on a flat surface that makes a closed loop without crossing itself, like a circle
  • noun
  • Specialized
translation icon : curva cerrada simple
  • A circle is an example of a simple closed curve in the plane.

Examples

  • The boundary of a region in geometry is often a simple closed curve.

  • Mathematicians study the properties of a simple closed curve to understand concepts like inside and outside.

  • A simple closed curve can be a circle.

  • The mathematician explained a simple closed curve in class.

  • A circle is an example of a simple closed curve in the plane.

  • The boundary of a shape can be described as a simple closed curve.

  • Mathematicians often use a simple closed curve to define concepts like area and perimeter.

Synonyms

Jordan curve
vssimple closed curve
  • Specialized
9.9

A closed loop on a flat surface, like a circle, that does not cross itself

is the same concept but given with a more formal, technical label

Surface Forms

Morphology

simple + closed + curve

The phrase is partly compositional: a B1 learner who knows 'curve' and 'closed' can infer a curve whose ends meet, but the modifier 'simple' carries a specialized mathematical sense ('no self-intersections') that is not the everyday meaning of 'simple' and is unlikely to be fully predictable without domain knowledge. Because the technical constraint on self-intersection is specific to mathematical usage, the overall meaning is only partially derivable from the constituents.

Etymology

The term simple closed curve gives a clear picture: imagine a single loop like a rubber band on a flat table, a curve where the ends meet so it is closed, and that does not cross itself so it is simple. This is why it means a loop with a clear 'inside' and 'outside'.