目前已有若干版本的子程序库公开发表，它们各有特色。本程序库中的开平方算法为快速逼近算法，它能达到牛顿迭代法同样的精度，而速度加快二十倍左右，超过双字节定点除法的速度。 -there are several versions of the subroutine library published their own characteristics. The library opened in the square approximation algorithm for rapid algorith

非监督分类程序，采用isodata算法，分类自组织迭代分类算法。-Non-supervised classification procedures, using ISODATA algorithm, iterative classification of self-organization classification algorithm.