运算符号

Its root is philosophy, that is, philosophy is the sources of cognitive science. Theoretically,cognitive science comes through from metaphysics to psychological experiment, from introspectionism to behaviorism, from cognitivism to connectionism and computational-representationism. Methodologically,cognitive science takes on from introspective examination to behavior analysis, from mental reduction to functional construction, from symbolic operation to arti...

认知科学根源于哲学，同时又包含着许多哲学问题；在理论上，认知科学经历了从形而上学思辨到心理实验，从内省主义到行为主义，从认知主义到联结主义、计算表征主义综合的范式更替；在方法上，表现出从内省审查到行为分析、从心理还原到功能建构、从符号运算到人工神经网络的转变。

Three elements should be calculated in first-order circuit, which can synthesise analytical solution. Second-order series RLC and parallel RLC both can be calculated by the general function, which uses the Matlab to calculate differential equations. Generally, second-order and high-order circuits use Laplace transformation to formulate circuit equation, and get analytical solution by using Laplace inverse transform.

一阶电路先计算3要素，后合成解析结果；RLC串联和并联的二阶电路采用自编的通用函数计算，自编函数采用了Matlab求解微分方程的符号运算方法；一般的二阶电路和高阶电路采用拉氏变换列写电路方程，再用拉氏反变换得到解析结果。

Abbreviated "Hz".In the case of computers, processing speed is reckon ed in megahertz.

符号的"Hz"。在电脑方面，运算速度以兆赫兹计算。

On the basic theory, some concepts are proposed, such as partial derivative of waveform polynomial, waveform polynomial vector, delay matrix, multiple valued Boolean process, conditional sensitization, waveform distance with crosstalk and three-dimentional Boolean process. And based on these concepts, a sensitization theorem for sequential circuits and the transition numbers theorems for waveform polynomial are proposed; the model and data structure for the representation and manipulation of waveform polynomial are proposed.

基础理论方面，提出波形多项式偏导、波形多项式向量、延时矩阵、多值Boolean过程、条件可敏化、考虑串绕的波形距离及三维Boolean过程等概念，并在此基础上提出时序电路的敏化定理、波形多项式描述跳变数的定理以及波形多项式的多项式符号表示与运算的模型和数据结构。

The methods for enhance the performance of multiplier are analyzed first, including Booth algorithm, Baugh-Wooley algorithm for direct 2's complement multiplication and the way for sign extension prevention when using Booth algorithm. Then the multiplier for both fixed-point and floating-point operation is designed. Finally the iteration algorithm for floating-point division is presented.

首先分析了提高乘法器性能的常用技术，包括Booth算法、直接进行补码乘法的Baugh-Wooley算法、采用Booth算法进行乘法计算时防止符号扩展的方法等，然后讨论了定浮点乘法器的设计，最后讨论了浮点除法运算的迭代算法。

Please draw the symbol of a operational amplifier. And state the function of each pin.

请画一个运算放大器的符号，并列出各个引脚的功能。

Please draw the symbol of a operational amplifier.

请画一个运算放大器的符号，并列出各个引脚的功能。

Still have the thing in if do not use Phobos warehouse,having, with respect to mistake of meeting occurrence join, I used operation of array join ~, it is relevant join symbol was not found it seems that.

还有就有如果不使用phobos库中的东西，就会出现连接错误，我使用了数组连接~运算，似乎是相关的连接符号没有找到。

Arithmetic can be performed on numbers in any base represented in positional notation.

用位置符号表示任何基底的数字可以完成运算。

In this part, some skills and methods for symbolic operations by artificial intellegence language PROLOG are discussed in detail.

该篇详细讨论了用人工智能语言Prolog实现符号运算的若干技术和方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了