fft13

说明：  实现快速离散傅里叶变换，即FFT,很有用的程序(Fast discrete Fourier transform, namely, FFT, very useful program)

this source code is use to calculate resister capacitor and inductor

求解KZK方程的VISUAL C++源代码 具有计算速度快，计算精度高等优点。(source code solution of KZK equation visual c++)

根轨迹文件 多刚体动力学 方程 根分布 稳定分析 (Root locus document root distribution multibody dynamics equations stability analysis)

湍流模型re计算流体力学软件udf 可以用于修改UDF文件(turbulence model FLUENT)

采用数值分析课程中的插值逼近以及曲面拟合方法来估算复杂的函数表达式。(Interpolation approximations and surface fitting methods are used in the numerical analysis course to estimate complex function expressions.)

用于焊接模拟的fluent的双椭球体热源UDF程序。(For welding simulation fluent double ellipsoid heat source UDF program.)

任意数学表达式计算的源码及测试软件 (Calculation of arbitrary mathematical expression of the source code and test software)

EMD分解C语言算法，内含EMD分解所需的三次样条插值C语言算法。(EMD decomposition algorithm C language, containing the decomposition EMD cubic spline interpolation algorithm C language.)

实现1到1000位的大数运算（包括加减乘除和浮点数运算），运行环境是vs2005(1-1000, large number operations (addition, subtraction and floating-point), the operating environment is vs2005)