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episo
适用于Engine计算的经典PISO算法(the classic PISO algorithm for the Engine calculation )
- 2010-01-09 20:07:56下载
- 积分:1
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vumat案例
说明: vumat案例,可以参考这个vumat子程序自行学习vumat的编写(hi. it is a file for VUMAT. it may help you to learn about it.)
- 2020-06-23 09:57:34下载
- 积分:1
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a-TEM-program
一个小的瞬变电磁测深数据处理程序,主要用于计算视电阻率和深度.(a small transient electromagnetic sounding data processing procedures, mainly used in the calculation of the apparent resistivity and depth
)
- 2012-04-23 09:52:30下载
- 积分:1
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u1_zhiluzhuijiaqiuzukongjuzhen
利用支路追加法求阻抗矩阵,解:输入数据如下:
请输入节点数:n=a
请输入支路数:nl=b
请输入由支路参数形成的矩阵:
B=[i j z bc t it ......]其中ij为支路端点,z为支路阻抗,bc为对地电容,t为变压器变比,it表示i端点是否与变压器直接相连。
(Seek additional method using branch impedance matrix)
- 2020-07-29 20:18:38下载
- 积分:1
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fun_fx86
采用了小波去噪的思想,matlab开发工具箱中的支持向量机,包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度。( Using wavelet denoising thought, matlab development toolbox support vector machine, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation.)
- 2017-04-10 13:45:38下载
- 积分:1
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FDTD-
把 Maxwell 方程式在时间和空间领域上进行差分化。利用蛙跳式(Leap frog algorithm)--空间领域内的电场和磁场进行交替计算,通过时间领域上更新来模仿电磁场的变化,达到数值计算的目的。(The Maxwell equations in time and space on the field differencing. Using the leapfrog (Leap frog algorithm)- Space field for alternating electric and magnetic fields calculated by the time domain electromagnetic field is updated to mimic the changes to achieve the purpose of numerical calculation.)
- 2013-11-04 09:40:37下载
- 积分:1
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matinv
说明: 矩阵求逆,使用fortran语言编写,希望能对有需要的朋友有所帮助(Matrix inversion, written in FORTRAN language, hoping to help friends in need)
- 2020-12-11 17:49:18下载
- 积分:1
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FLY
说明: 计算时程信号数据的快速傅里叶变换,进行频谱分析(The fast Fourier transform of time history signal data is calculated and the spectrum analysis is carried out)
- 2021-03-07 14:39:30下载
- 积分:1
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11087 统计逆序对
说明: Description
设a[0…n-1]是一个包含n个数的数组,若在ia[j],则称(i, j)为a数组的一个逆序对(inversion)。
比如 有5个逆序对。请采用类似“合并排序算法”的分治思路以O(nlogn)的效率来实现逆序对的统计。
一个n个元素序列的逆序对个数由三部分构成:
(1)它的左半部分逆序对的个数,(2)加上右半部分逆序对的个数,(3)再加上左半部分元素大于右半部分元素的数量。
其中前两部分(1)和(2)由递归来实现。要保证算法最后效率O(nlogn),第三部分(3)应该如何实现?
此题请勿采用O(n^2)的简单枚举算法来实现。
并思考如下问题:
(1)怎样的数组含有最多的逆序对?最多的又是多少个呢?
(2)插入排序的运行时间和数组中逆序对的个数有关系吗?什么关系?
输入格式
第一行:n,表示接下来要输入n个元素,n不超过10000。
第二行:n个元素序列。
输出格式
逆序对的个数。
输入样例
5
2 3 8 6 1
输出样例
5(Set a[0... N-1] is a n array containing n numbers. If there is a [i] > a [j] i n the case of I < j, then (i, j) is a n inversion pair of a array.
For example, has five reverse pairs. Please use the idea of "merge sorting algorithm" to achieve the statistics of inverse pairs with O (nlogn) efficiency.
The number of inverse pairs of a sequence of n elements consists of three parts:
(1) The number of reverse pairs in the left half, (2) the number of reverse pairs in the right half, (3) the number of elements in the left half is greater than that in the right half.
The first two parts (1) and (2) are implemented by recursion. To ensure the final efficiency of the algorithm O (nlogn), how should the third part (3) be implemented?
Do not use O (n ^ 2) simple enumeration algorithm to solve this problem.)
- 2019-01-07 23:52:06下载
- 积分:1
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JocobiGG
本程序是根据jacobi过关法求实对称矩阵的全部特征值和特征向量(This procedure is based on realistic method jacobi clearance of all symmetric matrix eigenvalue and eigenvectors)
- 2009-06-27 14:20:10下载
- 积分:1