3

该程序允许操作者用鼠标画出任意种桁架，然后求解，最后以图形方式输出结果。(The program allows the operator to use the mouse to draw any kind of truss, and then solving, and finally output the results graphically.)

说明：  Domain Services driver for Logical Domains.

基于Matlab的OFDM通信系统仿真分析(OFDM FFT simulation Channel estimation)

说明：  MATLAB中simulink对跳频抗干扰的分析(Analysis in MATLAB simulink hopping interference)

一维配点型无网格法matlab程序 可参见张雄无网格专著(One-dimensional distribution point type meshless method matlab program can be found in Zhang Xiong grid monograph)

选择两个函数做卷积运算，本实验里可供选择的函数有矩形窗函数，锯齿波函数和sinc函数，观察选取函数的波形(Select convolution of two functions to do this experiment choice of function has rectangular window function, sawtooth wave function and the sinc function, observe the waveform selection function)

说明：  此程序是变型PID控制算法的仿真程序，采用了变速积分方法，系统偏差大时，积分作用应减小，反之应加强。变速积分可以根据系统误差大小改变积分速度，提高了系统品质。(this procedure is a change in the PID control algorithm simulation program using the variable integration method, the system deviation, the integral role should be reduced, on the contrary should be strengthened. Integral variable speed system error can change the size of integration of speed, quality of the system.)

arc length :arclength: compute arc length of a space curve, or any curve represented as a sequence of points...

说明：  sar 仿真程序 点目标 简单的 RD算法(sar dot target)

euler nemerical method