1) {F_((1,1)}
数列{F(1,1)}
2) F ordered series of numbers
F数列
3) {F(m,n)} sequence
数列{F(m,n)}
4) forecasting models of the grey GM(1,1) sequence
GM(1,1)数列预测模型
5) F-number
[英]['ef'nʌmbə] [美]['ɛf'nʌmbɚ]
F数
1.
A hybrid refractive-diffractive infrared lens are designed with wave band 8～12 μm,focus 50 mm,F-number 0.
数列{F(1,1)}
2.
Infrared lenses are designed with focus 50mm,wave band 8~12μm,F-number 0.
数列{F(1,1)}
6) f number
f-数
补充资料：R阶差数列
相邻两项相减,得到一个新数列,一直如此操作直到得到常数列,减了几次,就称为几阶差数列
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条