English Dictionary

open rectangle

名詞

(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.

日本語の意味

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。

To compute the integral, we restricted our attention to an open rectangle whose sides were parallel to the axes.

積分を計算するために、辺が座標軸に平行な境界を含まない長方形領域に注目した。

意味（1）

(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.

open rectangles （ plural ）