開かい立りゅう

noun, noun or participle which takes 'suru', transitive verb

extraction of cubic root

Mathematical term for finding the cube root of a number. Used in arithmetic and algebra contexts.

• 27の開かい立りゅうは3です。

  The cube root of 27 is 3.

• この問もん題だいでは、まず開かい立りゅうしてから計けい算さんを進すすめます。

  In this problem, first extract the cube root and then proceed with the calculation.