本文讨论基于最小路径和最小割集的复杂系统可靠性的描述与计算问题。
A optional model of portfolio investment with fuzzy-coefficient in which profit rates and risk rates are fuzzy Numbers is presented in this paper.针对预期收益率与风险损失率为模糊数时,建立了一种具有模糊系数的证券组合投资选择模型。
The simulation trading system of portfolio investment is one of the most typical systems in the practical step of the finance-teaching curriculum .证券模拟交易系统是金融互动教学网站中专业课程教学实践环节的典型系统。