Last Updated:2025/11/26
(mathematics) A rectangle in the real plane which is an open set: i.e., which does not contain its edges. If the sides of the open rectangle are parallel to the plane's axes, then the open rectangle can be described as the Cartesian product of two open intervals.
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open rectangle
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Source Word
open rectangle
Noun
Japanese Meaning
実数平面上の集合として、辺(境界)を含まない長方形。すなわち、内部のみが対象となり、もし辺が座標軸に平行であれば、2つの開区間の直積で表現される。
( plural )