二维非稳态导热问题的Fortran程序

傅里叶变换FFT和逆傅里叶变换IFFT 欢迎大家喜欢(FFT and IFFT)

混沌时间序列分析的瑞利熵的计算方法，可计算出序列中的renyi entropy。(renyi entropy)

使用Fortran涡度、散度、涡度平流、温度平流计算代码(Using Fortran vorticity, divergence, vorticity advection, temperature advection calculation code.)

计算离散傅里叶变换的一种快速算法，简称FFT。快速傅里叶变换是1965年由J.W.库利和T.W.图基提出的。采用这种算法能使计算机计算离散傅里叶变换所需要的乘法次数大为减少，特别是被变换的抽样点数N越多，FFT算法计算量的节省就越显著。(A computing discrete Fourier transform fast algorithm, referred to as FFT. Fast Fourier Transform in 1965 by the JW Cooley and TW Tuji Ti out. Using this algorithm enables a computer to calculate the number of multiplications needed for the discrete Fourier transform greatly reduced, especially sampling points N is transformed more and save FFT algorithm to calculate the amount of the more remarkable.)

计算风力机的转换功率的算例 根据流体力学激盘素理论推出 最大转换功率不可能超过0.47(cofficience of power change from wind energy to eletricity energy.)

地球固连坐标系与地球惯性坐标系的转换矩阵程序，考虑的章动、岁差、自转等。(Earth' s solid even coordinate system with the Earth inertial coordinate system transformation matrix program, consider the nutation, precession, rotation, etc..)

Delphi实现最小二乘法，进行多点拟合，目前支持4点拟合(Delphi realizes the least square method and multi-point fitting. At present, it supports four-point fitting.)

理想流体势流的有限元求解程序,简单易懂，适合初学者对该方法编程的一个初步认识,程序内有详细的注释(Potential flow of ideal fluid finite element solver, easy to understand, this method is suitable for beginners programming a preliminary understanding of the program with detailed notes)

是学习PCA特征提取的很好的学习资料，能量熵的计算，对于初学matlab的同学会有帮助。( Is a good learning materials to learn PCA feature extraction, Energy entropy calculation, Matlab for beginner students will help.)

这是2011年中国等离子暑期学校关于磁流体力学（MHD）的讲义，授课的老师是北京大学的王晓刚教授，非常经典！(This is the 2011 China Summer School on magnetic plasma hydrodynamics (MHD) lectures, taught at Peking University Professor Wang Xiaogang teacher, very classic!)