高等数学里极值的运算：可以计算银行所付给存户的利率应定为多少，贷款的最大利润 2）高数里导数的运算：储蓄通过复利计息计算要在未来的每年末取多少钱要事先存入多少钱 3）概率的数学期望值和方差：资本资产定价模型（Capital asset pricing model）确定每一个股票和整个市场的相关性 4）概率中的随机变量及其分布：随机占优决策法则5）计量经济学里的投资函数理论模型：简单的加速原理模型，灵活的加速原理模型，投资滞后分布模型
1) Extremum in Mathematics can be used in calculation of the proper lending rate to make the largest profit in providing a loan. 2) Differential coefficient in Mathematics can be used in compound interest calculation for the money needed to be deposited in every year’s end to draw fixed money in a certain year in future. 3) Expectation and variance can be used in Capital Asset Pricing Model to make certain in the relationship between one stock and the whole stock market. 4) Stochastic variable and its distribution in Probability Theory can be used in the principle of the randomization- dominative decision-making. 5) Function theory model in Econometrics can be used in the Simple-accelerate Principle Model, Flexible-accelerate Principle Model, and Investment hysteresis distribution model.