读写sac的重要matlab程序，可以自习了解sac头文件里的各个细节点-Read sac important matlab program, you can self-study to understand sac header file for each minutiae

matlab串口发送接收数据，查询缓存接收固定长度的数据，无聊随便写个小程序-matlab serial transmission and reception of data, query cache receives a fixed-length data, bored easily write a small program to play

MATLAB入门基础MATLAB自问世起，就以数值计算称雄。MATLAB进行数值计算的基本处理单位是复数数组（或称阵列），并且数组维数是自动按照规则确定的。这一方面使MATLAB程序可以被高度“向量化”，另方面使用户易写易读。(MATLAB entry based on the advent of MATLAB, the numerical calculation rule. The basic processing unit for numerical calculation of MATLA