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1)  polygonal approximations method
折线逼近法
1.
By using polygonal approximations method,the global approximation solution is constructed for the initial-boundary value problem of non-convex scalar conservation laws in Finite Interval,and its convergence to the global weak entropy solution of corresponding initial-boundary value problem is proved in this paper.
使用折线逼近法,构造了有限区间上非凸单个守恒律初边值问题的整体近似解,并证明其收敛到初边值问题的整体弱熵解。
2)  the fold line of many segments approach indication
多段折线逼近法
1.
The essay gives a way for a nonlinear correction with the fold line of many segments approach indication in the design of intellectual atmospheric pressure sensor system,and made a compare between the results and the experimental data,the way was testified.
提出了在智能气压传感器算法设计中,利用多段折线逼近法实现非线性校正的一种应用技巧,并以计算出的结果与实验标定数据相比较,验证了该方法的可行性。
3)  broken line approximation
折线逼近
4)  Linear approximation method
线性逼近法
1.
After comporison, it manifests that when the linear approximation method is used to determine the groundwater polluted matter transportion hyaro.
经比较 ,线性逼近法运用于确定地下水污染物运移水动力参数 ,具有需要资料少 ,结果可靠等特点 ,具有一定的实用价
5)  curve approximation method
曲线逼近法
6)  secant approach means
割线逼近法
1.
According to the mathematical principle, the evaluation process of the state equation is analyzed in detail from the aspect of engineering practical evaluating using secant approach means and tangent insert means, and the flow chart and utility program bill are also given.
根据数学原理 ,利用割线逼近法、切线插值法从工程实用计算角度详细分析了状态方程的求解过程 ,并给出了流程图和实用程序清单。
补充资料:渐近逼近法
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性质:又称润滑逼近,逐步逼近,渐近逼近法。是数学中求解函数的一种叠代方法。对函数类A中给定的函数f(x),要求在另一类较简单的便于计算的函数类B中,求函数p(x)∈B,使P(x)与f(x)之差在某种度量意义下最小。函数类A通常是C[a、b],函数类B通常是代数多项式、分式有理函数或三角多项式。

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