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pic1d

于 2021-04-13 发布文件大小:1335KB

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下载积分: 1 下载次数: 13

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代码说明：

这是一个用于一维等离子体粒子模拟的Fortran程序。(This is a one-dimensional plasma particle simulation for Fortran programs.)

文件列表：

color.dat,418,2006-08-03
deviation.ps,10554,2006-08-03
history.out,62583,2006-08-03
Hu1994.pdf,1496025,2006-08-03
linear.ps,7426,2006-08-03
long.ps,52251,2006-08-03
pic1d.f90,16647,2006-08-03
plot.pro,14882,2006-08-03

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na7
Orthogonal Polynomials Approximation 数值分析，计算正交基多项式的系数 (Given a function f and a set of m >0 distinct points . You are supposed to write a function to approximate f by an orthogonal polynomial using the exact function values at the given m points with a weight assigned to each point . The total error must be no larger than a given tolerance. Format of function int OPA( double (*f)(double t), int m, double x[], double w[], double c[], double*eps ) where the function pointer double (*f)(double t) defines the function f int m is the number of points double x[] contains points double w[] contains the values of a weight function at the given points x[] double c[] contains the coefficients of the approximation polynomial double*eps is passed into the function as the tolerance for the error, and is supposed to be returned as the value of error. The function OPA is supposed to return the degree of the approximation polynomial. Note: a constant Max_n is defined so that if the total error is still not small enough when n = Ma)

2011-11-27 11:47:21下载

积分：1
NND2D
用于求解二维欧拉流动方程的有限差分程序,基于NND法,求解精度较高.(Perfect fortran program by two dimensional NND finite difference method for Euler Equations on unstructured Grids, structured Grids and adaptive unstructured Grids. )

2011-12-12 21:08:50下载

积分：1
dbr1
采用传输矩阵法计算，计算多层周期性介质薄膜在不同入射波长下的反射率。(calculate the reflectivity of multilayer periodic structure with TMM method)

2020-08-23 14:48:20下载

积分：1
C_classical_src
平常练习的一些程序，比较基础，包括求斐波那契数、完数等等(Some of the usual practice procedures, more infrastructure, including seeking Fibonacci numbers, number, etc. End)

2013-11-18 21:18:19下载

积分：1
K2.rar
从数据样本中随机选取一本分数据，运用K2算法进行贝叶斯网络结构学习(A sub-data randomly selected the data samples, using K2 Bayesian network structure learning algorithm)

2017-04-05 19:13:09下载

积分：1
the-normal-line-of-the-gear
齿轮传动参数测定和公法线公差计算，变位直齿圆柱齿轮参数测定(Determination and the normal line of the gear transmission parameter tolerances calculation)

2012-07-08 08:50:08下载

积分：1
wavepacket-cpp-0.1.1b
c++编写的小波包算法，可以实现小波包分解与重构，速度较快(A wavelet packet implementation written in C++, does wavepacket decomposition and reconstruction quite efficiently)

2020-07-04 00:20:02下载

积分：1
82859165cifa
编程序，按如下要求来求解n元一次线性方程组（假设方程组具有唯一解）。（1）方程个数n之值由用户通过键盘输入；（2）方程组存放在“增广矩阵”A之中，而n行n+1列的A存储空间通过new来动态分配，且A的各元素值也由用户通过键盘输入 (Allocation procedures, the following requirements to solve the n-a system of linear equations (assuming a unique solution of equations). (1) the number n of the value equation by the user through the keyboard input (2) equations stored in the augmented matrix A, while n line n+ 1 column A storage space through the new dynamically allocated, and A The value of each element by the user through the keyboard input)

2011-06-21 22:50:34下载

积分：1
Learn R for Applied Statistics
说明： Do you need to gain confidence with handling numbers and formulae? Do you want a clear, step-by-step guide to the key concepts and principles of statistics? Nearly all aspects of our lives can be subject to statistical analysis. Statistics: An Introduction shows you how to interpret, analyze and present figures. Assuming minimal knowledge of maths and using examples from a wide variety of everyday contexts, this book makes often complex concepts and techniques easy to get to grips with. This new edition has been fully updated. Whether you want to understand the statistics that you are bombarded with every day or are a student or professional coming to statistics from a wide range of disciplines, Statistics: An Introduction covers it all.

2020-06-22 22:20:01下载

积分：1
非线性振动
非线性振动.pdf 刘延柱编写恢复力与位移不成正比或阻尼力不与速度一次方成正比的系统的振动。尽管线性振动理论早已相当完善,在工程上也已取得广泛和卓有成效的应用，但在实际问题中，总有一些用线性理论无法解释的现象。一般说，线性模型只适用于小运动范围，起出这一范围，按线性问题处理就不仅在量上会引起较大误差，而且有时还会出现质上的差异，这就促使人们研究非线性振动。(Nonlinear Vibration. Compilation of PDF Liu Yanzhu)

2020-11-23 20:09:34下载

积分：1

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