penalty function短语¹⁴⁴⁹⁷²⁺² 基本例句 罚函数,补偿函数 In this model, the authors established the integro- differential equation for the expected discounted penalty function at ruin in the case of constant force of interest. 就利息力为常数的情形，给出该模型下破产时刻罚金折现期望满足的积分-微分方程。 dictall