Breaking point

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angle point

A singular point of a plane curve with the property that two branches of the curve end in it in such a way that each has a (one-sided) tangent at the point different from the other. For example, the origin is a breaking point of the curve (see Fig.). The left and right derivatives are different at a breaking point.

Figure: b017630a

How to Cite This Entry:
Breaking point. Encyclopedia of Mathematics. URL:
This article was adapted from an original article by A.B. Ivanov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article