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temperature
用于ABAQUS计算,描述复合材料温度场变化的程序(describing changes in the temperature field of composite materials with ABAQUS)
- 2018-06-28 16:49:21下载
- 积分:1
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最小2乘法
Delphi实现最小二乘法,进行多点拟合,目前支持4点拟合(Delphi realizes the least square method and multi-point fitting. At present, it supports four-point fitting.)
- 2020-06-17 19:40:01下载
- 积分:1
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1D_introduction-FDTD
很详细的一维FDTD介绍,以及MATLAB程序说明(Very detailed one-dimensional FDTD presentation and description of the MATLAB program)
- 2021-03-26 23:29:12下载
- 积分:1
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NONSAP
有限元NONSAP源程序,里面带有例子,大家可以参考。(Finite element NONSAP source, which with examples, we can refer to.)
- 2014-03-30 11:37:58下载
- 积分:1
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[muchong.com]MATLAB在计算物理中的应用
用Matlab程序求解计算物理中使用到的方程,包括:薛定谔方程、傅立叶变换、波函数求解等等(Matlab file is used to describe and solve the equations in the computational physics, including, Schrodinger equation, Fourier transform, wave function solution, etc.)
- 2018-05-30 21:37:36下载
- 积分:1
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基于matlab AR模型的最小二乘法实现
基于matlab AR模型的最小二乘法实现参数辨识,加上Word配合理解,相信你理解的会更快的。(Matlab AR model based on the least squares method to achieve parameter identification, coupled with Word understanding, I believe you will understand faster.)
- 2017-06-13 20:30:06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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断裂力学中的数值计算方法及工程应用-算例程序
说明: 金属断裂的数值计算提供理论依据及实际详例解读(The numerical calculation of metal fracture provides theoretical basis and interpretation of practical examples)
- 2019-03-15 13:45:02下载
- 积分:1
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MMA
说明: 拓扑优化MMA算法从空间的一个初始设计点出发,沿着某个搜索方向以适当步长的迭代格式 ,实现对设计变量的修改,以获得的值。(Starting from an initial design point in space, the topology optimization MMA algorithm modifies the design variables in an appropriate iterative format along a certain search direction to obtain the optimal value)
- 2021-02-04 12:14:39下载
- 积分:1
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san_jm43
用于建立主成分分析模型,这是一个好用的频偏估计算法的matlab仿真程序,用于时频分析算法。( Principal component analysis model for establishing, This is a useful frequency estimation algorithm matlab simulation program, For time-frequency analysis algorithm.)
- 2017-04-25 16:06:25下载
- 积分:1