怎么判断一个数值表达式是否合法！
执行一元运算，返回数值表达式的负值。
Performs a unary operation that returns the negative value of a numeric expression.
返回所提供的舍入到最近整数的数值表达式。
Returns a supplied numeric expression rounded to the nearest integer.
模式被maildrop求值作为任何别的数值表达式。
Patterns are evaluated by mail drop as any other numerical expression.
如果值大于值类型的最大值，数值表达式可能导致溢出。
Numeric expressions may cause overflows if the value is larger than the maximum value of the value's type.
返回在某一集合上对数值表达式求得的标准偏差(偏置填充)。
Returns the standard deviation of a numeric expression evaluated over a set (biased).
一元运算符对单个操作数执行操作，如返回数值表达式的负值或正值。
Unary operators perform an operation on a single operand, such as returning the negative or positive value of a numeric expression.
求解方程组可得到结构特征值的均值和均方差的统计特征的数值表达式。
By solving these equations, statistical expressions of expectation and mean square covariance about eigenvalues will be gotten.
返回这样的维度，该维度在多维数据集中的以零为基的位置是由数值表达式指定的。
Returns the dimension whose zero-based position within the cube is specified by a numeric expression.
简立方晶体中的计算对晶体作了各向同性近似，虽然各向同性数学计算简单，并且可以得到一些有用的结果，但得到的结果仅仅数值表达式，不能反映其物理本质。
The approximation of isotropy was considered in simple cubic which makes the mathematics be simple, but the result is only described by number which doesn't reflect essence in physic.
换句话说，如果我得到了Q的表达式，知道了配分函数，我可以计算它在任意温度下的数值。
In other words, if I have an expression for Q, I know the partition function, and I can calculate it at any temperature.
至此，您可能想知道不同数值类型在单个表达式中混合出现的时候怎么办。
By now, you're probably wondering what happens when the different numerical types are mixed in a single expression.
当一个表达式被赋值时，每个操作符将会被应用于其周围所有项所代表的数值。
When an expression is evaluated, each operator is applied to the data values represented by the surrounding terms.
当ITracer 在跟踪一个数值 时，它会检查阀值正则表达式是否匹配被跟踪指标的复合名称。
When ITracer traces a numeric value, it checks to see if a threshold regular expression matches the compound name of the metric being traced.
您还可以将属性转变成正则表达式及VerificationPointEditor中的或测试对象地图中的数值范围。
You can also convert properties to regular expressions and numeric ranges from within the Verification Point Editor, or the test object map.
项，比如第二章表达式中的n1和n2，代表了单个的数值。
A term, such as n1 and n2 in the expressions from Chapter 2, represents a single data value.
数值通常由调用其他方法产生，很大可能来自于库包，这些方法返回一个数值给原来的表达式。
Values are often generated by calling other methods, possibly in library packages, that return data values to the original expression.
在这种情形中，格式实际上是基于一个规则(MDX表达式)的，基于每个单元格的数值设置不同的填充颜色。
In this case, the formatting is actually based on a rule (MDX expression), setting different fill colors based on the value in each cell.
begin和end属性要么是静态整数值，要么是可以得出整数值的表达式。
The begin and end attributes should be either static integer values or expressions evaluating to integer values.
根据这个表达式对两种常见的晶体管施密特电路进行了数值计算。
Using these expressions numerical calculations were carried out for two types of commonly used transistor Schmitt circuit.
表达式是数值，变量和操作符的组合。
An expression is a combination of values, variables, and operators.
本方法采用解析表达式、用数值迭代计算法解决给定的问题，是一种精确的方法。
This proposed method USES mathematic expressions and iterations to solve the problem, and it is a reliable and accurate method.
利用高斯数值积分方法，推导了方形活塞辐射阻抗的三重积分表达式，计算了方形活塞声源的辐射阻抗。
Triple integral expression of the radiation impedance of square piston is deduced and the numerical results of the radiation impedance are calculated with the method of Gaussian numerical integral.
参数值可以是任何有效的模板表达式，比如字符串字面量或组件的属性。
The parameter value can be any valid template expression such as a string literal or a component property.
一种以algol语言为基础，为数学表达式进行非数值操作而设计的程序设计语言。
A programming language based on ALGOL and designed for non - numeric manipulation of mathematical expressions.
所导出的数学表达式，可用于精确的数值分析和设计计算。
The mathematical formulation given can be used for accurate numerical computation and design purposes.
采用物理图像分析，建立简单的数学模型，求解并获得了有限空间气溶胶浓度场函数表达式，并进行相应的数值分析。
The mathematic model is set up by using physics image analysis, the expression of aerosol concentration field in limited space is derived, and the correspondent numerical analysis is .
运用数论理论中素数的性质和特点，将符号计算问题转化为数值计算问题，设计了一个布尔表达式化简工具。
This paper applies the characters of primes in the mathematical theory of Numbers transfers the symbolic computation into value computation and designs a tool of Boolean expression simplification.
基于再生核方法，温度分布的精确表达式和稳定的数值算法被给出。
The exact expression for the solution and stable numerical algorithm are given based on the reproducing kernel method.
最后运用数值方法得到均匀rlc互连线串扰噪声的时域估计表达式。
Finally, the estimation expression of crosstalk noise of uniform RLC model in time domain is presented by numerical technique.
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