-
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
-
led_lens_with_matlab
LED 二次光学设计中的透镜设计,根据非成像光学原理,利用matlab计算生成二维点坐标,可导入3维建模软件,生产模型。代码经过测试,可成功完成计算。大家可以参考一下。(LED optical design, lens design, according to the non-imaging optics principle, the use of matlab calculation to generate two-dimensional coordinates can import 3-D modeling software, the production model. The code has been tested and successfully completed the calculation. We can refer to.)
- 2012-04-06 13:04:07下载
- 积分:1
-
piotr_toolbox
matlab的外用工具扩展包,里面包含HOG,ANN等多种实现(Matlab external tools expansion pack, containing HOG, ANN and so on the many kinds of implementation)
- 2015-04-01 16:33:44下载
- 积分:1
-
print
matlab的一些插值和拟合算法,
包括最小二乘法等(matlab some interpolation and fitting algorithm, including the least squares, etc.)
- 2008-12-10 22:31:28下载
- 积分:1
-
CS_HelloWorld
压缩感知的介绍性算法 主要是介绍OMP算法在稀疏信号重构上的实现(The compressed sensing introductory algorithm is introduced OMP implementations of the algorithm in the sparse signal reconstruction)
- 2012-09-18 17:40:50下载
- 积分:1
-
simulation-of-communications-systems---modeling--
Since the first edition of this book was published seven years ago, the field of modeling and simulation of communication systems has grown and matured in many ways, and the use of simulation as a day-to-day tool is now even more common practice. With the current interest in digital mobile communications, a primary area of application of modeling and simulation is now in wireless systems of a different flavor from the `traditional ones. This second edition represents a substantial revision of the first, partly to accommodate the new applications that have arisen. New chapters include material on modeling and simulation of nonlinear systems, with a complementary section on related measurement techniques, channel modeling and three new case studies a consolidated set of problems is provided at the end of the book.
- 2013-01-05 02:32:36下载
- 积分:1
-
functions-for-matlab
里面包括常用的MATLAB 图像函数,十分符合新手(Which include the popular image of MATLAB functions, is in line with novice)
- 2011-09-16 23:14:28下载
- 积分:1
-
task1
M序列脉冲响应辨识,系统辨识,采用5级移位寄存器产生M序列作为输入信号,辨识该系统的脉冲响应(M-sequence impulse response identification, system identification, a 5-stage shift register generates M sequence as the input signal, identify the system impulse response)
- 2011-12-01 00:06:16下载
- 积分:1
-
LPA
分布式LT码(DLT)的度分布函数的线性规划,线性规划出中继的度分布函数(DLT linear program)
- 2016-07-15 11:15:01下载
- 积分:1
-
power_3phsignaldq
3 phase signals converted to d-q signals with graphs of both
- 2009-04-01 18:41:18下载
- 积分:1