ex2_5

高斯插值拟合用，在数据较少的情况下拟合精度慢速要求，三到四阶。(Lagrange interpolation fit to use, in the case of less data fitting precision of slow demand, three to four bands.)

求序列向量xn的傅里叶变换和离散傅里叶变换并画出它们的幅频特性和相频特性曲线，验证离散傅里叶变换是傅里叶变换的等间隔采样，验证IDFT和DFT的唯一性(Find the Fourier transform of the sequence xn vector and the discrete Fourier transform and draw their amplitude-frequency characteristic and phase-frequency characteristic curve, verify the discrete Fourier transform is the Fourier transform of equally spaced sampling, verification of IDFT and DFT Uniqueness)

OFDM 的全套程序， 包括调制， 解调， 误码， 眼图， 功率谱。。。(OFDM complete set of procedures, including modulation, demodulation, error, eye diagrams, power spectrum. . .)

matlab软件在有限差中的应用，里面含有一篇相关论文(the software matlab finite difference, which contains a related paper)

matlab在有限元中的应用，平面常应变三节点单元，注解清晰，应用方便。(matlab in finite element applications, three-node constant strain plane unit, well commented, easy application. )

MATLAB混合编程想把matlab强大的功能用在自己的工程实践中吗这是本不错的混合编程的书(Hybrid Programming MATLAB want matlab powerful in their own practice, it works this is a mixture of good programming book)

Find all factorings of N which have K elements

Computational Colour Science Using MATLAB - Stephen Westland & Caterina Ripamonti

信号与系统第二版清华大学出版社课后习题编程答案(Signals and Systems, Tsinghua University Press, second edition programming after-school exercise answer)

这是一个基于matlab的一个pca变换，先从去均值处理，在降维，然后一些列变化(This is a based on the matlab a pca transform, first from to mean processing, on dimensional reduction, and then a few changes )