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principal component analysis+ databases

这是21寸定位压合源代码(it s very inportent)

此列为求0阶到9阶贝塞尔函数的根。在泰勒综合时可以很容易的为后续计算做好准备。另附有波导缝隙阵天线的论文。(This as a request to the root of the order 0 to 9 order Bessel function. Can be easily integrated in Taylor to prepare for the subsequent calculations. Attached there is the thesis of the waveguide slot array antenna.)

AR模型高阶谱分析工具箱即HOSA定阶函数(High-order spectral analysis toolbox AR model order determination function that HOSA)

支持向量机回归模型，可应用于经济、金融时间序列预测！(SVM Model)

real and imagenary cepstrum

The ADPCM package is a flexible simulation tool for an adaptive differential encoder and decoder with backward predictor adaptation. It uses an LP-based (Burg) adaptive predictor and a nonuniform quantizer with mu transfer function. It generates the encoded bitstream and estimates the efficiency of a Huffman code for the compressed sequence.

Useing the MATLAB command remez to obtain a low pass filter z(n) with a cutof frequency of 40 Hz at a sample rate of 1000 Hz.

这个函数用来通过蒙特卡罗求积分， f 要求的函数； fail1 积分下限 fail2 积分上限 a，b 积分区域内x的积分上下限 c,d 积分区域内y的最大和最小值,c,d不是必须的参数，但是有之计算速度更快 n 求解迭代次数( This function is used to find the integral Monte Carlo, function f requirements fail1 integral limit fail2 integral upper limit a, regional integration within b limit c on x points, d- the maximum and minimum value of the integration region y, c, d is not required parameters, but the calculation speed is faster n Iteration number)

给你一个非常大的整数x，(-10^400 <=x<= 10^400)，请统计x的每一位，分别输出9,1,2出现的次数. Input 一个大整数 Output 一共三行，第一行是9出现的次数，第二行是1出现的次数，第三行是2出现的次数。 Sample Input 912912912910915902 Sample Output 6 5 4(Statistical figures)