舍入

Generally, it is important to estimate and control round-off errors arising from the use of floating point arithmetic.

一般来说，重要的是要估计和控制舍入误差的使用中出现的浮点运算。

Type for example 0.20 for a 20% discount according to the base price .

你可以指定舍入方法，这用于计算最接近的数。

Compared to the built-in float implementation of binary floating point, the new class is especially helpful for financial applications and other uses which require exact decimal representation, control over precision, control over rounding to meet legal or regulatory requirements, tracking of significant decimal places, or for applications where the user expects the results to match calculations done by hand.

相比内置的二进制浮点数实现：class：' float'，新类型特别适用于金融应用和其它需要精确十进制表达的场合，控制精度，控制舍入以适应法律或者规定要求，确保十进制数位精度，或者用户希望用作数学计算的场合。

We first present a 0.73-approximation algorithm, which can take the advantage of the special structure of the bipartite graph, for disjoint bisection 2Catalog Segmentation problem.

我们先讨论无交的平分二目录分割问题，利用图的特殊结构设计了巧妙的随机舍入方法得到0.73-近似算法。

When scaled factor circulant matrices are nonsingular, we can find the single solution of the scaled factor circulant matrix equation; When scaled factor circulant matrices are singular, we can find the special as well as the general solution of the scaled factor circulant matrix equation; There is only an error of approximation when the fast algorithm is implemented on computers, and only the elements in the first row of the scaled factor circulant matrix and the constants in the diagonal matrix are needed by the fast algorithm.

当鳞状因子循环矩阵非奇异时，该快速算法求出线性方程组的唯一解；当鳞状因子循环矩阵奇异时，该快速算法求出线性方程组的特解与通解。该快速算法仅用到鳞状因子循环矩阵的第一行元素及对角矩阵中的对角上的常数进行计算。在计算机上实现时只有舍入误差。

A combined Gauss main-element elimination method with compress-storage technique is proposed, which with the characteristic of less-storage requirement, small rounding off and high stability, and solved the problem of large storage requirements in solving large linear algebraic equations in river networks hydraulics

提出了压缩存贮形式的Gauss列主元消去法，该方法具有存贮量小、舍入误差小、数值计算稳定的特点，在一定程度上解决了河网水力计算问题中关于众多线性方程组的存贮及其求解过程中可能面临的困难。

The corresponding least-squares solution with minimum norm can be also obtained by choosing a kind of special initial matrices.

在不考虑舍入误差的情况下，对任意的初始矩阵都可以在有限步计算出它们在给定矩阵集合中的一个最小二乘解，若选取特殊的初始矩阵，则可以得到相应的最小范数最小二乘解。

Because some simplified formulas concerned the establishment of model, the error of numerical value calculation and some accidental errors in actual produce, simulated result and experiment data can have the deviation.

因为模型的建立涉及到一些公式的简化、数值计算中的舍入误差以及电池实际制作中的一些偶然误差，所以模拟结果与实验数据会有偏差。

In this paper,based on the skew tent map, a class of discretized finite state chaotic maps are proposed which allow an exact numerical study without round_off errors.

基于skew tent映射，提出了一类离散化的有限状态混沌映射，它允许精确的数值计算，没有舍入误差。

Note that both arithmetic and non-arithmetic operations might also produce others "non-rounding" errors, such as underflow/overflow, division-by-zero or 'operation errors'.

注意，算术操作和非算术操作都可能产生其它"非舍入"误差，例如下溢/上溢，除 0，或'操作误差'。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。