实数

基本解释 (translations)

real  ·  reals

词组短语

real number · the actual amount or number

与实数相关的网络例句 [注：此内容来源于网络，仅供参考]

The method that simple cubic equation was changed from general to standard was introduced and the distribution of standardized real root was illustrated, which solved the problem of the distribution of any real root for simple cubic equation.

摘要介绍了一元三次方程一般式化为标准式的方法，结合图形给出了标准式的实数根的分布情况，从而解决了任意一元三次方程的实数根的分布的问题。

Money is often expressed with a decimal part, yet you should never use real numbers for handling Money.

货币经常包含一个"小数部分"，你千万不要用"实数"方式来处理货币，这是因为实数的四舍五入方式从来都不考虑货币类型的需要，如果忽略这个事实就很容易导致接连不断的错误发生。

Now the controllability theory in linear systems over the field R of real numbers has been heavily studied. This theory is efficacious for analyzing the characters which are determined by the value of physical parameters and system structure, nevertheless a practical system has a definite structure and has approximate, even unknown parameter sometimes because of a limit to experiment conditions, or a limit to making technology, the errors of observation. It is inconvenience for a linear system over the field R of real numbers to analyze the structure characters of a physical system, such as structural controllability.

目前，实数域上的系统的完全能控性理论研究已经很成熟了，它用于分析系统结构和物理参量的值共同决定的那些性能是有效的，然而，在工程中，由于实验条件或者制造工艺上的限制和观测上的误差，以及人为地对数据的近似处理，一个实际系统往往其结构是确定的，而参数只是近似的甚至未知的，实数域上的系统不便于分析物理系统的结构性质，如结构能控性。

By using the method for positive term resolution of equations of higher degree, all non-zero real roots of a real coefficient equation of higher degreewere obtained by determiningthe abscissas of intersection points of two monotonically increasing concave functions in the first quadrant of a planar rectangular coordinate system.

用高次方程正项分解方法，将求解实系数高次方程非零实数根的问题，转化成求解两单调上升凹函数在平面直角系第一象限内交点横坐标的等价问题；给出了基于共享存储多指令流多数据流并行计算模型求解任意实系数高次方程全部实数根的大范围收敛性异步并行迭代算法，并分析了算法计算的复杂程度。

Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.

针对图像模板匹配问题的领域知识，采用单类拟子和实数编码，给出快速共同进化匹配算法策略，基于NPROD相似度测度，仿真试验了无差别和有差别模板匹配，验证了共同进化算法对实数编码和实时性搜索问题上的有效性。

Finally, it analyses the time complexity of the algorithm and researches how it is influenced by culture operator.3、The paper presents the evaluation standard of the GA's application capability. Basing on characters such as continuity, multi-peak, vibration, randomicity as well as large-scale, five functions are selected to test search ability and robustcity of co-evolution algorithm. Finally, it analyses the simulation result and researches the influence of algorithm brought by culture operators.4、Basing on the concept of collection overcast, it researches the task distribution issue and constitutes delaminated math model on task distribution issue. It puts out the co-evolution algorithm of subtask's decomposing. The experiment compare IGA、SGA to CN and validates the efficiency of co-evolution algorithm on the NP completeness issue.5、Being aim at the optimization issue of load of antenna near ground, it combines many GA strategies and puts forward strategic meme. And it puts out co-evolution algorithm of load of antenna design. And it emulates the optimization design of load of antenna near ground. Finally, it valuates the co-evolution algorithm's efficiency on the continuum search issues of multi-variable and multi-peak value.6、Being aiming at the knowledge of image model matching, it adopts single meme and real code. It puts out fast co-evolution matching algorithm strategy. Basing on NPROD resemble measurement, I emulate the indiscrimination model matching and discrimination model matching. Finally, it valuates the co-evolution algorithm's efficiency on the real code and real time search issue.

分析了算法的时间复杂度，研究了文化算子对算法时间复杂度的影响。3、提出了GA的应用性能评价标准，从连续性、多峰性、随机性、振荡性、广域性多个角度出发选择五个测试函数，对共同进化算法的搜索性能和鲁棒性作了函数优化的性能测试，分析了仿真结果，研究了文化算子对算法的影响。4、基于集覆盖的概念，研究了MAS中的任务分配问题，建立了任务分配问题的分层数学模型，给出了子任务分解共同进化算法，实验比较了IGA、SGA、CN，验证了共同进化算法对NP完全问题的有效性。5、针对近地天线加载优化设计问题，结合多种改进GA策略，提出了策略型拟子，给出天线加载设计的共同进化算法，对有耗半空间对称偶极子天线加载优化设计作了仿真实验，验证了共同进化算法对多变量多峰连续搜索问题上的有效性。6、针对图像模板匹配问题的领域知识，采用单类拟子和实数编码，给出快速共同进化匹配算法策略，基于NPROD相似度测度，仿真试验了无差别和有差别模板匹配，验证了共同进化算法对实数编码和实时性搜索问题上的有效性。

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。

To overcome the local optimal problem existing in some maximum likelihood DOA estimation algorithms, improve the estimation accuracy, a global optimal solution of nonlinear maximum likelihood DOA estimation is obtained by real-valued genetic algorithm proposed in this paper.

所提出的实数遗传算法由含实数域结构和目标函数信息的实数交叉和变异算子构成，是较理想的获取非线性实变量函数全局最优解的方法。

Conversely, a point P to the right of the origin, whose distance from the origin is d units, shall have as its corresponding real number the positive real number d and, similarly, if Q is a point d units to the left of the origin , then Q shall have as its corresponding real number the negative real number –d.

Conversely，在起源右边的点P，从起源的距离是d单位，将有作为它对应的实数正面实数d和，同样地，如果Q是点d单位在起源左边，然后Q将有作为它对应的实数消极实数–d。

Integer can assign to integer and real variable, but real number can only assign to real variable.

整数可以配给整数及实数的变数，但实数只可以配给实数变数。

与实数相关的网络解释 [注：此内容来源于网络，仅供参考]

additive group of real numbers：实数加法群

实数|real number | 实数加法群|additive group of real numbers | 实数域|real number field

arithmetic number：正实数

arithmetic mean 算术平均 | arithmetic number 正实数 | arithmetic of algebraic number fields 代数数域的数论

closed number plane：闭实数平面

closed neighborhood 闭邻域 | closed number plane 闭实数平面 | closed path 闭路

field of real numbers：实数域

field of rationals 有理数域 | field of real numbers 实数域 | field of scalars 系数域

hyperreal numbers：超实数

hyperquadric 超二次曲面 | hyperreal numbers 超实数 | hyperspace 超空间

实数,有理数? irrational(number) 无理数：real number, rational number

negative whole number 负整数?? consecutive number 连续整数 | real number, rational number 实数,有理数? irrational(number) 无理数 | absolute value 绝对值

real number field：实数域

real number axis 实数轴 | real number field 实数域 | real number 实数

real number field：实数域=>実数体

real number 实数=>実数 | real number field 实数域=>実数体 | real one 本物

real variable：实数变量

real number 实数 | real variable 实数变量 | real-time 实时

extended reals：扩充实数集

extended real number ==> 广义实数 | extended reals ==> 扩充实数集 | extended reproduction ==> 扩大再生产