False root - Kyokon

Japanese: 虚根 - きょこん
False root - Kyokon
Roots of an equation that are imaginary numbers. ⇔ Real roots. [English-Japanese Dictionary of Mathematical Dictionary (1889)]

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:
〘名〙 方程式の根のうち、虚数であるもの。⇔実根。〔数学ニ用ヰル辞ノ英和対訳字書(1889)〕

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