Civil engineers build mathematical models of Bridges and other structures to calculate how much weight and stress they can bear before committing to an expensive construction phase.
For this reason, a mathematical model of construction & operation costs for power transmission lines is set up, and some calculation examples are given as well.
为此建立了电力线路建设费用和运营费用的数学模型，导出了导线经济截面的新计算方法。
3
In this paper the content of mathematical analysis is analysed, the some imagine about construction course of mathematical analysis and education for teachers is gived.