摘要
证明了用角2πω^2/(1+ω^2)、2π(3+ω^2)和2π/(2+ω^2)在圆周上作插分得到任意n个分点并将圆周分为11个角时,其最小角与最大角之比也至少是ω^2.根据叶序的基本功能,用模糊数学的综合评判理论证明了角2πω^2优于角2πω^2/(1+ω^2)、2π/(3+ω^2)和2π/(2+ω^2),从而从理论上说明了2πω^2作为互生植物的叶序分数所对应的极限角是合理的.
This paper proves that the ratio of the smallest angle to the biggest angle is also at least ω^2 when using 2πω^2/(1+ω^2),2π/(3+ω^2)and 2π/(2+ω^2)to divide a circumference and obtain n(〉1) dots and angles. Based on the basic function of phyllotaxis, it obtains that 2πω^2 is more superior than 2πω^2/(1+ω^2),2π/(3+ω^2)and 2π/(2+ω^2)by fuzzy synthetic evaluation. This result is consistent with the leaf number's limit of alternate plants.
出处
《生物数学学报》
CSCD
北大核心
2007年第1期187-191,共5页
Journal of Biomathematics
基金
浙江省教育厅科研项目(20060532)
关键词
叶序角
最优叶序角
互生
模糊综合评判
Phyllotaxis angle
Optimal phyllotaxis angle
Alternate
Fuzzy synthetic evaluation