舍入

To analyze the rounding error of calculator floating-point numbers arithmetic operation is the foundation of numerical calculation method's error analysis.

对计算机浮点数算术运算的舍入误差进行分析，是对数值计算方法作误差分析的基础。

Advances an efficient method of 2D FIR filtering based on impulse response rounding. Discusses the impulse response characteristics of 2D FIR filter. Then describes designing process of efficient 2D FIR filter based on impulse response rounding. Discusses application of efficient 2D filter with circular symmetric with eightfold symmetric frequency response. At last discusses the selection of rounding parameters.

提出了一种高效、实用的二维FIR滤波器的设计方法，在讨论了二维FIR滤波器的冲激响应特性的基础上，开发了一种基于冲激响应舍入法的高效二维FIR滤波器的设计方法，并以具有八重对称的圆对称滤波器为例讨论了高效滤波器的实现过程，最后对滤波器设计中的舍入参数的确定进行了讨论。

Although the code example rounds decimal numbers, the Round method rounds double-precision floating-point numbers in a similar way.

尽管该代码示例对小数进行舍入，但Round方法以类似的方式对双精度浮点数进行舍入。

Int returns the integer part of X; that is, X rounded toward zero. X is a real-type expression.

Int函数返回参数X的整数部分，X为实数类型，函数结果为X经过负向舍入(向0舍入)实数。

Int returns the integer part of X; that is, X rounded toward zero. X is a real-type expression_r_r.

Int函数返回参数X的整数部分，X为实数类型，函数结果为X经过负向舍入(向0舍入)实数。

Express it as the mean value when rounded to the nearest 1°C,with an exactly intermediate result being rounded down-wards.

将其表示为正中值向下位舍入而得到的最近于1°C 的平均值。（还是上次说过的五舍六入方法

All theorems about the upper limit of a rounding error, including that of epsilon, refer only to the 'rounding' operation, nothing more.

关於舍入误差上限，包括精度的所有理论，都只考虑'舍入'操作，不考虑其它。

For the partial products generation, the novel method of Booth encoding combined with partial products generating is put up, which can directly map the multiplicand and multiplicator to partition products without generating the BOOTH encoding results. For the optimization of Wallace tree adding, the series formulas of full-adder and 4-2 Compressor realization are introduced to guidance the selection. For the non-bias round, forwarding round disposal in Wallace tree method is brought forward to avoid the final multi-bit adder. Also, the idea of delay-oriented partition of the MAC frame is put up to achieve the perfect match with multi-pipeline DSP architecture.

提出了一种构建多模式算法最小并集的MAC通用结构思想与一种划分MAC通用结构以适应多流水级DSP处理器设计的通用MAC设计方法；对于BOOTH编码和部分积产生，提出了直接建立被乘数与部分积的多路选择映射关系的BOOTH编码和部分积联合产生方法；对于最优Wallace树型加法实现，提出了全加器和4-2 compressor电路实现Wallace树加法所需的关键加法路径级数公式以指导实现选择；对于无偏舍入处理，提出了在Wallace树处理舍入问题的舍入运算前置方法；提出了以时延为导向的MAC各部分单元组合与流水线匹配具体方法。

If N is inexactly representable, t is required to be one of the two adjacents, with an implementation-defined choice of rounding direction; that is, the conversion is required to be correctly rounded.

如果 N 是不可精确表示的，则要求 t 是两个邻值之一，舍入的方向由实现定义来选择；即要求转换是适当舍入的。

The most common forms of rounding are rounding down, rounding up, and rounding off.

最通常的舍入方式是：下舍入，上舍入，四舍五入。

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。