| 释义 |
cosecant Trig.|kəʊˈsiːkənt|
[f. co- prefix 4 + secant. The L. cosecans was used a 1576 by Rheticus, Opus Palatinum (1596). F. cosécante.]
The secant of the complement of a given angle. (Abbreviated cosec.)
1706in Phillips, Co-secant. 1807Hutton Course Math. II. 3 The radius, cotangent, and cosecant [form] another right-angled triangle cdl. 1868Lockyer Elem. Astron. 243 AP / PM ..is called the cosecant of A (written cosec. A). |