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functionz
说明:
在三次样条中,要寻找三次多项式,以逼近每对数据点间的曲线。在样条术语中,这些数据点称之为断点。因为,两点只能决定一条直线,而在两点间的曲线可用无限多的三次多项式近似。因此,为使结果具有唯一性。在三次样条中,增加了三次多项式的约束条件。通过限定每个三次多项式的一阶和二阶导数,使其在断点处相等,就可以较好地确定所有内部三次多项式。此外,近似多项式通过这些断点的斜率和曲率是连续的。然而,第一个和最后一个三次多项式在第一个和最后一个断点以外,没有伴随多项式。因此必须通过其它方法确定其余的约束。最常用的方法,也是函数spline所采用的方法,就是采用非扭结(not-a-knot)条件。这个条件强迫第一个和第二个三次多项式的三阶导数相等。对最后一个和倒数第二个三次多项式也做同样地处理。
(the Cubic Spline, to find three polynomial, approaching every right to point the data curve. The kind of terms, these data points called breakpoints. Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation. Therefore, in order for the outcome of uniqueness. The Cubic Spline, add the cubic polynomial bound by the conditions. By limiting each cubic polynomial of the first order and second-order derivative, it breakpoint in the same Department, we can better identify all internal cubic polynomial. In addition, the polynomial approximation of these breakpoints slope and curvature is continuous. However, the last one and a cubic polynomial in a breakpoint and the final one, not accompanied by polynomials. There)
- 2006-03-15 21:19:29下载
- 积分:1
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dtwrap
this file computes the distance between two vectors using the dynamic time wrap technique.
- 2011-05-22 01:36:54下载
- 积分:1
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111
基于四元数方法的姿态解算,详细介绍了四元数解算姿态的基本方法(Quaternion method based solver, detailing the basic method solver quaternion attitude)
- 2014-11-05 11:18:17下载
- 积分:1
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PWE
This program calculates the 2D photonic Band Structure with PWE method.
- 2009-04-18 21:52:43下载
- 积分:1
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matlabprogram
matlab 编程文档,比较全的说明对于初学者很有帮助(matlab program)
- 2010-05-08 11:54:37下载
- 积分:1
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PSO_BP
将pso算法与BP神经网络结合,忘对大家有帮助(combine PSO algorithm with BP neural network)
- 2013-05-19 09:25:13下载
- 积分:1
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MATLAB1
MC-CDMA的主体程序,对于初级学习者非常有用。大家多多支持啊(MC-CDMA in the main program is very useful for primary learners)
- 2010-07-21 17:18:56下载
- 积分:1
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TDST_0
一个时滞系统的工具箱,可以求解线性,非线性时滞系统的状态响应,阶跃响应等(A time-delay systems toolbox, you can solve the linear, nonlinear time-delay system of state response, step response, etc.)
- 2007-11-08 17:58:11下载
- 积分:1
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decisionBoundaryPlot
说明: 采用matlab编写的,采用二进制进行模式分类的程序,(prepared using Matlab, using binary for pattern classification procedures,)
- 2005-09-12 10:39:17下载
- 积分:1
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chemistryandmatlab
本书详细的介绍了利用matlab解决化学工作人员遇到的作图、计算、数据处理等问题。(This book describes in detail the staff using matlab to solve chemical mapping experience, computing, data processing and other issues.)
- 2010-11-02 11:49:26下载
- 积分:1