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QR-decomposition
QR分解法是目前求一般矩阵全部特征值的最有效并广泛应用的方法，一般矩阵先经过正交相似变化成为Hessenberg矩阵，然后再应用QR方法求特征值和特征向量。它是将矩阵分解成一个正规正交矩阵Q与上三角形矩阵R，所以称为QR分解法,(QR decomposition
)
- 2020-08-31 01:08:10下载
- 积分：1
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Calculator
PB开发的计算器程序，适合初学者，比较简单，开发程序版本PB9.0(PB calculator program developed for beginners, is relatively simple, the development program version PB9.0)
- 2012-12-26 17:55:50下载
- 积分：1
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Learn R for Applied Statistics
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
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fangfai
脉冲响应的相关分析算法并检验，计算一维光子晶体的透射特性和反射特性，有较好的参考价值。( Related impulse response analysis algorithm and inspection, Calculated transmission characteristics and reflection characteristics of the one-dimensional photonic crystals, There are good reference value.)
- 2017-03-13 11:43:45下载
- 积分：1
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residues
该文件含残差点数目计算、均方差计算、信噪比计算、边缘等效视数计算(The document containing terms of the number of residues are calculated variance, SNR calculation, calculation of equivalent number of edges)
- 2010-06-19 09:47:40下载
- 积分：1
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CH7
一些很有用的数值计算程序：包括多种数值逼近算法的C语言程序，如龙格逼近算法，里米兹一致逼近算法等(Some very useful numerical calculation procedures: including a variety of numerical approximation algorithm for the C language program, such as the Runge approximation algorithm, where meads uniform approximation algorithm)
- 2008-07-15 09:27:57下载
- 积分：1
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UMAT-FOR-JOHNSON-COOK-MODEL
学习用UMAT程序，用于abaqus隐式计算的Johnson-cook模型，有所修改(Learn UMAT program for abaqus Johnson-cook implicit calculation model, some modifications)
- 2021-04-06 13:29:02下载
- 积分：1
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matlab
说明： 利用matlab求解方程，方程求解并画图(Equation solving and drawing)
- 2020-11-17 14:28:06下载
- 积分：1
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Caipiao
新的彩票预测抄来的！真的是抄来的！真的真的真真的！(The new lottery prediction copy to Really copied! Really, really Barbara!)
- 2012-07-29 16:12:47下载
- 积分：1
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two kinds of vortex beam
两种涡旋光束的线性强度、强度密度和三维立体图，改变拓扑荷可以改变强度分布。(two kinds of vortex beam)
- 2018-08-17 21:31:36下载
- 积分：1
