usercreep

C语言实现大数的加法减法以及乘法,水平限于仅仅大学生水平学习使用。(Use C language to achieve that addition, subtraction, and multiplication of a big intger.)

仿真效率很高的，小波包分析提取振动信号中的特征频率，实现用SDRAM运行nios，同时用SRAM保存摄像头数据。( High simulation efficiency, Wavelet packet analysis to extract vibration signal characteristic frequency, Implemented with SDRAM run nios, while saving camera data SRAM.)

假临近点法计算最佳嵌入维数的程序，可以根据自己需要适当修改调整(False approaching point method to calculate the optimal embedding dimension of the program can be adjusted according to their needs with appropriate modifications)

说明：  线性代数及其应用 第4版 1-Linear Algebra and Its Applications 4ed.MIT Gilbert Strang(1-Linear Algebra and Its Applications 4ed.MIT Gilbert Strang)

数学中计算曲线积分 数学工具中常用到这样的方法(Calculated curve integral mathematics math tools commonly used in such a way)

牛顿插值法进行多项式逼近，matlab编译成功，直接可用(Newton interpolation polynomial approximation method, matlab compiled successfully, directly available)

二阶微分方程组，采用龙格库塔法求解，将二阶降为一阶之后在求解。(Second-order differential equations, using the Runge-Kutta method to solve the second-order reduced to an order after solving.)

拉格朗日插值函数，自己编的，供大家参考学习(Lagrange interpolation function, own, and for reference study)

说明：  模拟电场中的等势线，利用计算机数学软件MATLAB模拟仿真真空中自由电荷，电偶极子，带电细棒，尖端导体等附近静电场电场线及等势线分布图型(Equipotential line in simulated electric field)

根据传输线理论，计算无耗传输线的输入输出阻抗，画图表示电压电流和阻抗随线路长的变化(Based on transmission line theory to calculate the input and output impedance of the lossless transmission line, drawing, said the change of voltage, current and impedance with the line length)