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newton_raphson
Newton-Raphson算法 介绍
在科学计算和财经工程领域,许多数值算法都是通用的(至少在理论上是),可广泛地用于解决一类问题。一个大家熟悉的例子就是Newton-Raphson例程,它可用来寻找方程 f(x)=0的数值解。标准的数学表达式f(x)表示f是变量x的函数,其通常的表达形式为f(x,a,b,...)=0,f被定义为多于一个变量的函数。在这种情况下,Newton-Raphson算法试图把x以外的变量固定并作为参数,而寻找关于变量x的数值解。
由于Newton-Raphson算法需要知道被求解函数的确切表达,其传统实现方法是直接将代码嵌入到客户应用程序中。这就使得算法的实现代码经过针对不同被求解函数的少量修改后在客户程序中反复出现。
同许多其它数学例程一样,Newton-Raphson算法的具体实现是应该与特定用户无关的。并且,重复编码在任何情况下都应该尽量避免。我们很自然地会想到把该类例程作为库函数来实现,以使客户程序可以直接调用它们。但是,这种实现方式必然会涉及到如何将用户自定义函数(Newton-Raphson 例程需要调用该函数)封装成可以作为参数传递的形式。
(err)
- 2008-06-16 10:38:48下载
- 积分:1
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FLOYD
这是用用 Floyd 算法求任意两点间的最短路径及最短路长的程序
(This is by using Floyd algorithm for arbitrary shortest path between two points and the shortest path length of the procedure)
- 2009-02-26 21:17:56下载
- 积分:1
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wavelet
一个基于MATLAB的小波模极大值的计算方法(A MATLAB-based wavelet modulus maxima method)
- 2009-11-21 16:27:44下载
- 积分:1
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watermark
基于DCT算法水印的嵌入和提取MATLAB 程序(wartermark and detecter)
- 2009-05-21 10:56:32下载
- 积分:1
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QPSK_AWGN
本代码为matlab编写,编程实现信号经过QPSK调制后,再经过AWGN信道下,得到的误码率性能曲线,并且与理论上的误码率进行对比。(The matlab code is written in programming through the QPSK modulation signal, and then through the AWGN channel, the resulting bit error rate performance curve, and with the theoretical bit error rates were compared)
- 2011-12-29 20:48:51下载
- 积分:1
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Watterson-matlab
Abstract The key of developing high frequency wideband communication system is how to
model the HF wideband channel. Some HF wideband models are discussed and compared in this paper,
including Vogler model, parallel subband model, two improved Watterson models and Pseudo-
Deterministic model. As a deterministic model, Volger model basically describes the characteristics of HF
wideband channel, but it also needs to be improved. The improvement of Vogler model is given in this
paper.
- 2021-04-23 22:18:48下载
- 积分:1
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READDATA
将MIT-BIH标准心电数据库中的数据读入到matlab中的程序(The MIT-BIH ECG database to read the procedure in matlab)
- 2007-11-11 13:35:35下载
- 积分:1
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pts2
pts降低正交频分复用ofdm的峰均比论文
(Pts is to reduce the frequency in the papers are better than to as remultiplexing
)
- 2010-05-28 22:57:18下载
- 积分:1
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-MIT-MATLAB-lecture
搜集到的麻省理工学院的 matlab教程
感觉讲的很不错(Collected MIT matlab tutorial speak very good feeling)
- 2013-03-15 16:16:16下载
- 积分:1
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simulink_pcv_0.2.0
simulink获取图像点云并对其进行操作(point cloud based on simulink)
- 2013-12-17 08:35:09下载
- 积分:1