最大的利润

考虑未来竞争的空间交互选址问题求解-consider the future competitiveness of the space problem solving interactive site

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信号傅立叶变换的幅度图和频谱图的示例 信号傅立叶变换的幅度图和频谱图的示例-signal Fourier transform spectrum range map and the map of the signal sample rate Fourier Transform map and the map of the sample spectrum

该文件为c++的数学函数库!是一个非常有用的编程工具.它含有各种数学函数,为科学计算、工程应用等程序编写提供方便！-the document to the c Math Library! It is a very useful programming tools. It contains a variety of mathematical functions, for science, engineering application procedures for the preparation of convenience!

使用MPI做并行计算时，根据程序的具体要求，可按任务进行分配或数据进行分配。根据矩阵乘积的特点，这里按数据进行分配，即每个计算机节点计算不同的数据，由于矩阵数据的特点，这里按行进行数据分块。矩阵乘法在于对矩阵进行分块，然后交由各进程执行，最后将计算结果传递给主进程。 假设是M*N，计算前，将矩阵N发送给所有从进程，然后将矩阵M分块，将M中数据按行分给各从进程，在从进程中计算M中部分行数据和N的乘积，最后将结果发送给主进程。这里为了方便，有多少进程，就将M分了多少块，除最后一块外的其他数据块大小都相等，最后一块是剩下的数据，大小大于等于其他数据块大小，因为矩阵行数不一定整除进程数。最后一块数据在主进程中计算，其他的在从进程中计算。

基于51ds1302、ds18b20数码管显示 基于51ds1302、ds18b20数码管显示基于51ds1302、ds18b20数码管显示基于51ds1302、ds18b20数码管显示基于51ds1302、ds18b20数码管显示

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一个计算任意位PI的程序，仅需输入位数就可以，程序非常简单-an arbitrary bit PI calculation procedures, only on the importation of the median, very simple procedures

一个毕业程序设计，是用小波和支持向量机对电能质量扰动的识别与分类，主要利用的能量特征。-A graduate program design is the use of wavelet and support vector machines for power quality disturbance recognition and classification, the main characteristics of energy use.

利用基尔霍夫驻留相位近似求解高斯粗糙面后向散射系数 考虑不同的参数对散射系数的影响