Concave

Concave is a term used in various fields of study such as mathematics, physics, and biology to describe a surface or line that curves inward. It is the opposite of convex, which refers to a surface or line that curves outward.

Mathematics

In mathematics, a concave function is one where the line segment between any two points on the function's graph never lies below the graph. This is in contrast to a convex function, where the line segment between any two points on the function's graph never lies above the graph.

Physics

In physics, a concave mirror is a mirror with a reflective surface that curves inward. This type of mirror can focus light to a single point, creating a real image. This is different from a convex mirror, which disperses light and creates a virtual image.

Biology

In biology, a concave shape can be seen in various structures and cells. For example, the human eye has a concave lens which helps to focus light onto the retina.

See also

• Convex
• Concave polygon
• Concave function
• Concave mirror
• Concave lens

Concave Resources
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