正负号

一个实数在不计其正负号时的值。

A numerical value regardless of its sign .

当前提案中包括供判断是否为空、正负号、开发语言和线程等方面的众多注解。

The current proposal includes annotations for nullness , sign , language , and threading amongst others .

由Seebeck系数的正负号确定载流子的类型是P型还是N型。

The charged carriers could be distinguished to be P-type or N-type according to the sign of the Seebeck coefficient .

此外，还可以使用指数记数法表示浮点型直接量，即实数后跟随字母e或E，后面加上正负号，其后再加一个整型指数。

Floating-Point literals may also be represented using exponential notation : a real number followed by the letter e ( or E ), followed by an optional plus or minus sign , followed by an integer exponent .

在常微分方程稳定性理论中，Liapunov稳定性基本定理中的V函数是一个定号函数，且它关于时间t的全导数dV/dt的正负号要求与V相反。

In the stability theory of ordinary differential equations , the V-function of Liapunov fundamental theorem of stability is a fixed sign and its total derivative is contrary sign to V-fuction .

我这里换了一种颜色，表示2p轨道，不同的相位或者是正负号。

So I changed the colors here to show that these are2 p orbitals with an opposite phase or an opposite sign .

本文给出了自动建立机器人关节座标架原则，DH参数正负号确定原则，描述了关节座标架建立流程及DH参数求解方法。

This paper gives a general method of creating kinematic model of robots , which includes building joint links by DH rule , setting up joint coordinate frames and finding DH parameters .

在解决热力学有关问题时，△U、A、Q的正负号往往容易搞错，正确利用图线判别法，可使问题变得简便、明了。

When solving the problems of thermodynamics , we are easily confused by the plus sign and the minus sign of △ U , A and Q. If one can use the method of chart differentiating , the above will be simple and clear .

对影响线正负号问题的探讨

Discussion on the positive and negative sign for influence line

特别注意答案的正负号。

Pay special attention to the sign of the answer .

但有时回避用正负号表示矢量方向可使解决问题的过程简化。

However , sometimes avoiding it can predigest the process of solving problems .

现在必须介绍曲率半径的正负号规则。

It is now necessary to introduce a sign convention for radii of curvature .

正负号在物理学中的应用

Positive and negative signs in physics application

关于规定曲率弯矩方程弯矩正负号的问题

The problem of designating the sign of bending moment in the curvature - bending moment equation

啁啾参数的正负号不影响横向光强分布和光谱分布。

The sign of chirp parameters has no effect on the spectral distribution and transversal intensity distribution .

注意高位代表正负号：0为正，1为负。

Note that the high bit represents the sign : 0 means positive and 1 means negative .

当任何两行或两列互换时，行列式的正负号改变。

When any two rows or two columns are interchanged , the sign of the determinant is changed .

也可以不理会零值的存在，根据差值之正负号进行符号检验。

The third strategy is to perform sign test according to differences of the paired data without consideration for zeros .

如果你们比较s轨道和下面这叶，它们正负号相反，所以它们相消干涉。

If you compare the s orbital with the bottom lobe , these have a different sign so they 're going to destructively interfere .

分类讨论了媒质参数正负号变化对全反射、垂直入射全透射和负折射的影响。

The effect of the different medium parameters on the total reflection , normally incident total transmission and negative refraction is discussed in different cases .

他不使用他认为有矛盾的负数，却引进了一套复杂的图表，称为正负号的对应。

He did not use negative numbers , which he regarded as contradictory , but introduced a complicated scheme called " correspondence of signs " .

结果表明，计算值和实验值的正负号一致率为90%，并基本处于同一数量级。

The results showed that the coincidence rate of sign ( positive or negative ) is 90 % for calculation and experimental values which are basically in the same magnitude .

我们容易知道，法向量为，正负号取决于它是指向外面还是里面。

Namely , we will be saying the / a normal vector is x , y , z over a , plus or minus depending on whether we want it pointing in or out .