log4j

数据分析软件。分析数据间的关系，确定分类决策等。这套软件会为你提供这方面学习的帮助。(Data analysis software. The relationship between analytical data to determine the classification of decision-making. The software will provide you with the help of learning in this regard.)

产生两不迥频率的信号，并对两信号作复数FFT变换，找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)

Abstract—In this paper, a new lossy technique based on wavelet transform for compression of breast ultrasound images is presented. The experiments are performed on 16 different wavelet functions and the quality of reconstructed images is evaluated by using Compression Ratio (CR), Normalized Mean Square Error (NMSE), Normalized Absolute Error (NAE), and Peak Signal to Noise Ratio (PSNR) criterion. An ultrasonographer performed the subjective assessment. This study shows that among the utilized wavelets,

Programa que calcula as curvas de I x v e potencia de PV solar

Nes C programming language Guide

Canonical Variates Analysis

金融工程中关于SABR问题的求解，使用蒙特卡洛方法(Stochastic Alpha Beta Rho Model，Monte Carlo)

Euler方法解 程序，使之适用于任意右端函数f,任意步长h和任意区间[to,T]。用h=1/4,1/8,1/16分别计算初值问题 (Euler method Solutions program, which applies to arbitrary subguadratic function f, arbitrary step h and arbitrary interval [to T]. With h = 1/4, 1/8, 1/16 were calculated initial value problems)

详细介绍了pca算法，具有一定的通用性,比较适合初学者(Pca algorithm described in detail with a certain degree of commonality，it is very useful for learner)

基于MATLAB_ISIGHT动力总成悬置系统仿真分析与优化(Simulation analysis and optimization of powertrain mounting system based on MATLAB_ISIGHT)