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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)

对仿真信号进行时频分析，单峰检测，脊线提取，脊线拟合，计算脊线波动方差，从而判断信号类别。本次仿真采用的是线性调频信号，对其他信号也具有适用性。对仿真信号进行时频分析，单峰检测，脊线提取，脊线拟合，计算脊线波动方差，从而判断信号类别。(The time-frequency analysis of the simulation signal, unimodal detection, ridge line extraction, ridge line fitting, fluctuation variance calculation ridge line, to determine the signal classification.USES a linear frequency modulation signal, the simulation also has the applicability for other signals.The time-frequency analysis of the simulation signal, unimodal detection, ridge line extraction, ridge line fitting, fluctuation variance calculation ridge line, to determine the signal classification.)

应用蒙特卡罗模拟方法计算期权价格 统计模拟方法亦称蒙特卡罗(Monte-Carlo)方法.因为通常的教科书几乎不涉及 此内容.了解的人不多。听到过的人又常把它看作是统计力学或核物理等学科的专门工具.很少想到这个方法与自己的科研工作有什么关系。 (Application of Monte Carlo simulation method of calculating the option price statistics, also known as Monte Carlo simulation method (Monte-Carlo) methods. Because textbooks are usually almost do not involve this content. Not many people understand. Heard of people often see it as a statistical mechanics or nuclear physics disciplines, such as specialized tools. Rarely thought about this method and their own research work has anything to do.)

模糊聚类处理过程中计算传递闭包的程序。指定行列后，自动读取Excel中数据。(fuzzy clustering)

English version for matlab learning(easy to learn and simple to use)

实现图像中眼睛的检测与定位，有很好的效果，用matlab实现(Image in the eye of the detection and location, have a good effect, with the realization of matlab)

计算AR模型的参数，包括滤波、去趋势化、AIC判断阶数、计算AR模型系数。(Calculation AR model parameters, including filtering, detrended, AIC judgment order to calculate the AR model coefficients.)

Matlab功率谱计算，其中包含了关于功率的几种算法(Matlab power spectrum calculation, which contains the power of several algorithms)

this is a file pdf for photonic crystal fibers

改进的完备总体经验模态分解，可以削除虚假分量的产生和精确地重构原始信号(Improved overall complete ENID, slashing false components can generate and accurately reconstruct the original signal)