J2000toWGS84

傅立叶变换的C语言实现，可在Turbo C以及Visual C++下实现。(Fourier Transform C language, in Turbo C and Visual C under.)

卡尔曼滤波程序用于时间序列预测，结构简单程序易懂(kalman filter for prediction)

说明：  常用算法的c语言实现，包括一些经典的比如，最小二乘，插值与逼近等等！(Commonly used algorithm c language, including some classic example, least squares, interpolation and approximation, etc.!)

用栈的思想实现的简易计算器，可直接输入表达式，然后自动计算结果(Ideology with a stack of simple calculator, you can directly enter an expression, then automatically calculated)

一个柴油机模型，能计算柴油机的油耗率，扭矩(a diesel engine modle)

抛物型方程古典&c-n格式差分算法 dasdsadsadasdsdsadas(Parabolic equations of classical & c-n format dasdsadsadasdsdsadas differential algorithm)

改进的GM（1，1）程序，可实现时间序列的灰色等维新息预测，采用弃旧纳新的原则。(The improved GM (1, 1) program, can realize the time series prediction using grey information renewal, discarding the old and new principles.)

同心导体球和球壳之间的电势差和感应电荷的计算(Potential difference between the concentric conducting sphere and spherical, and the calculation of the induced charge)

二维有限元源代码，为位势问题基本代码，具有一定实用性(Two-dimensional finite element source code for potential problems basic code, with some practical)

说明：  本程序可计算二维光子晶体的带隙，并得出带隙图，和带隙位置及宽度(This procedure computable two-dimensional photonic bandgap crystals, and came to the band-gap maps, and the band-gap position and width)