最后给出改善病态方程组的解的实例。
Then, as an example, the solution to the ill conditioned system of equations is also presented.
该方法运用最小二乘回归法和抛弃平均法消除病态方程组。
In the method, the least square regression combined with the treatment of selective average is used to deal with the abnormal equations.
在线性方程组求解的过程中采用了PCG法，增强了对病态方程组的求解能力。
PCG is used to solve the linear equations, boosting the ability for morbid equations.
求解低对称晶系晶胞参数的联立方程组的某些组合可使误差严重积累，构成病态方程组。
Some combinations of simultaneous equations for obtaining lattice constants of low-symmetry crystal systems can lead to a serious accumulation of errors and the formation of abnormal state equations.
讨论了最小二乘多项式拟合中引起正规方程组病态的两个重要原因：节点对原点的偏离程度和节点坐标的数量级。
In this paper two reasons-the deviation of the data from the origin and the size of the data-causing the ill-conditioned normal equations in the least square fitting of a polynomial are discussed.
最小二乘法方程组在某些组合情况下也会出现严重的病态方程。
The least square simultaneous equations in some cases of combination also have the problem of the abnormal state equation.
利用自然水平函数，将众所周知的阻尼牛顿法进行推广，用于求解病态非线性方程组。
By using the so-called "natural level functions", we extend the well-known damped Newton method to solve ill-conditioned systems of nonlinear equations.
提出了通过处理原始方程组解决模型病态性的方法，通过实例验证了该方法的有效性。
The method for solving the ill-condition of model is put forward by improving the original linear equations. The result of its application verifies the effectiveness of th…
采用时间项技术的三维初至折射波静校正方法在求解大型方程组时由于方程组的病态性质将遇到困难。
The 3-d first break refraction static corrections adopted time-term technique has difficulty in solving large-scale set of equations because of ill-conditioned property of set of equations.
利用自然水平函数，将众所周知的阻尼牛顿法进行推广，用于求解病态非线性方程组。
Using natural spline functions with multiple knots, we discuss the extended Sard approximation of Linear functional.
利用自然水平函数，将众所周知的阻尼牛顿法进行推广，用于求解病态非线性方程组。
Using natural spline functions with multiple knots, we discuss the extended Sard approximation of Linear functional.
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