| 释义 |
詞目:CO-TANGENT 1844衛三畏英華韻府歷階CO-TANGENT1餘切線1844衛三畏英華韻府歷階 1筆p 52 1872盧公明英華萃林韻府Co-tangent1餘切線1872盧公明英華萃林韻府 1筆p 102 1884井上哲次郎訂增英華字典Co-tangentn.1餘切1884井上哲次郎訂增英華字典 1筆p 323 1908顏惠慶英華大辭典Co-tangentn.1The tangent of the complement of an arc or angle, (幾何)餘切, 餘切線(幾何)餘切、餘切線1908顏惠慶英華大辭典 1筆p 494 1913商務書館英華新字典Co-tangentn.1餘切線p 118 1913商務書館英華新字典 1筆英華☞COTANGENT |