Loan China today is a hot topic of society,when the true loan to buy a house also contains a lot of knowledge.But these knowledge core or a mathematics model of optimization problems.But this article is trying to studying the problem by mathematical method,get an optimal combination.For millions of homeowners put forward a little advice.
This paper mainly adopts curve fitting method to roughly estimate the teacher of personal income.Use residual minimum principle and least-square method fitting out teachers function expressions of wage income.And a young teacher next several years income growth and titles made a forecast.Ascending Meanwhile,through the series of knowledge and the principle of differential equation,it is concluded that the two different ways to engage the analytical expressions.Through the generation of value is obtained two ways to test their required conditions,also from practice for payment of the principal and understand why will become payments way now purchase of the mainstream.
Because the author capability owe deep and time relationship,and many other reasons,this paper will have many defects.For example:in the curve fitting point of microroughness for scarce,and somewhat fitting effect has certain influence.In a loan to buy houses the stage with borrowed,really was because the teacher family is at least two individual's family,and the other half income bad,so also can only guess hazard for simplified treatment.Also please bear with me a lot.
Finally,this paper many deficiencies still attention,teachers:please comment,the classmate.