| 单词 | circular function |
| 例句 | The question so far chiefly considered has been that of the representation of an arbitrary function of the time in terms of functions of a special type, viz. the circular functions cos nt, sin nt. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 8 "Haller, Albrecht" to "Harmonium" 2012-01-02T03:00:22.443Z Elliptic Functions are generalizations of the circular functions sine, cosine, &c. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z The circular functions have the period 2π; the elliptic functions are doubly periodic, having both a real and a pure imaginary period when k2 is real and less than 1. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z |
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