要将这个公式转换为一个表达式，你需要使用变量来记录半径及周长。
To translate this formula into an expression, you would use variables to record the radius and circumference.
要将这个公式转换为表达式，你需要使用变量来记录半径及周长。
To translate this formula into a expression, you would use variables to record the radius and circumference.
为了让编程对人而言更加简单，这些表达式采用与传统数学公式尽可能类似的语法。
To make programming easier for humans, these expressions tend to have a syntactic form that mirrors as closely as possible the representation used in traditional mathematical formulae.
这样的表达式在各种地方都会出现，比如试卷后面的公式页？
Expressions like this you know turn up in various places, like in the equations sheet that appears at the end of exams, right?
这里有个债券交易商，用了上百年的公式，这是个传统表达式，它能用折扣率算得价格。
Well, there's a formula that's been used by bond traders for hundreds of years and it's a traditional expression, which goes from the discount rate to the price.
对于这种表达式是没有简单的公式。
假定你出版了一部大学教材，里面有大量的数学公式和化学表达式。
Need more convincing? Imagine you have a college text laden with math and chemical formulas.
它的语法有些令人困惑，但是基本上它是将结合了常规表达式和XPath的表达式进行公式化的方法。
The syntax is a little confusing, but basically it is a way of formulating expressions that are a combination of regular expressions and XPaths.
用假设弱透镜焦距表达式是一个幂级数中的第一项的方法，可以导出相当准确且便于实用的电磁电子透镜物镜焦距公式。
By assuming the weak lens focal length expression to be the first term in a power series a simple and accurate formula can be derived for the objective focal length of a magnetic electron lens.
综合比较梁、柱的塑性铰公式，建立简化塑性铰长度表达式；
The simplified expression of plastic hinge is presented on the basis of existing equations.
公式节点中的运算符和语法同样适用与表达式节点。
The same operators and syntax of the Formula Node apply to the Expression Node.
通过深入分析，还得到了每个通用张量阻抗元素计算公式的直观表达式，显示出明确的物理意义。
Through deep analysis, we also got direct expression of calculation formula for each general tensor impedance element, showing a clear physical meaning.
数学表达式的识别是将科学和工程文献中的数学公式转变成电子文档的一种形式。
Recognition of Mathematical Expressions is to transform the Mathematical Expression in the scientific and engineering documents into electronical documents.
提出了一个新的孔压公式；给出了非线性弹性模型和弹塑性模型的孔压系数的表达式。
It presents a new pore pressure formula and proposes an expression of pore pressure coefficient for non-linear elastoplastic models.
给出了漂移信息流和扩散信息流的表达式、信息减损率和信息熵产生率的简明公式。
Expressions of drift information flow and diffusion information flow, and concise formulas of information dissipation rate and information entropy production rate are given.
通过建立广义数学表达式的文法规则以及分析程序，实现了基于专家系统的公式识别器。
This paper implements a mathematical formula recognition tool by establishing a math expression grammar in broad sense and analytical program.
通过解传输线阻抗转移公式和终端输入阻抗的气隙电容表达式的联立方程得出了数值结果。
The numerical results were obtained in a table by solving the combined equation of transmission line impedance transfer equation and terminal input impedance expression in gas capacitance.
由推导出的齿端和槽端面积及其圆心矩公式，首先得出轴套（侧板）内外两侧所受的力和力矩关于齿轮基本参数的函数表达式。
Based on both the area formula of gear tooth and groove and their respective center multiplying formula, the force and moment expressions of both sides of side-panels could be brought out at first.
文中还给出了四种元件复阻抗的统一表达式和一个积分形式的电容公式。
For every lumped element a expression of the complex impedance with unified integral form and a capacitance formula in integral form are also given.
本文提出了低温区高精度的禁带宽度的表达式，获得了低温区本征载流子浓度的简明公式。
A accurate expression for the bandgap and a simple formula for the intrinsic carrier concentration at low temperature are presented.
文中还对锐聚焦系统给出了最佳归一化离焦量的表达式和相应的ETF近似公式。
For sharp-focusing system, the expressions for the position of optimum image plane and its corresponding ETF are also given.
得出积分形式的基尔霍夫第二定律，且导出四个夏阻抗的统一表达式和一个积分形式的电容特性公式。
Not only Kirchoff's second law integral form can be obtained but also an unified expression of four complex impedances a characteristic formula of capacitance in integral form can he derived thereby.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
并给出了新的水轮机流量与蜗壳压差关系表达式，同时也给出了详细的逼近计算过程和计算公式。
Not only a new expression of the turbine's discharge and differential pressure of the Spiral case was proposed, but also the detailed approximation process and computing formula were given.
给出描述光波通过傍轴光学系统衍射的柯林斯公式及其逆运算表达式。
Collins formula, which describes the diffraction of light wave passed through a near-axis optical system, and its inverse calculation expression are presented in this paper.
推导了测波仪波高订正系数表达式及波高计算公式。阐述了三种波高的观测计算方法。
Correction coefficient for the wave meter and expressions for wave height calculation are inferred and three methods for observation and calculation of wave height are addressed.
从基本电路的稳定度公式出发，讨论了采用恒流源负载和辅助电源的稳定度表达式。
From the stability formula of the base circuit, the stability expression within constant current source and assistant power is discussed.
本文讨论了调幅系数为任意值的调幅波，给出了它的表达式、频谱及调幅系数、调制效率和信噪比增益的计算公式。
The amplitude modulated wave with any modulation factor is discussed in this paper. Its expression, spectrum and formula of the modulation factor, modulation efficiency, SNR gain are given.
根据这些表达式进一步推导套管轴向力和径向力的计算公式，然后根据这些公式定性地分析注蒸汽采油对套管强度的影响。
By means of these expressions, formulas for calculating the axial and radial forces on the casing are derived and then the influence of steam flooding on casing strength is qualitatively analyzed.
首先将一个网络分解为几个基础网络，然后利用基础网络的可靠性表达式给出系统的可靠性计算公式。
Firstly, the network is converted into some basic networks, then, reliability formulas for these basic networks have been used to give out the system reliability formula.
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