该软件以图形化界面显示在计算机内部定点小数补码加法、定点小数补码减法，定点小数补码乘法、定点小数补码除法、以及原码乘法和原码除法的具体计算过程。-software to the graphic interface displayed on the computer within the sentinel minority complement addition, fixed-point decimal complement subtraction, fixed-point decimal com

这是一个高效的FFT程序，采用定点计算，效率很高。-This is a highly efficient FFT procedure using sentinel, high efficiency.

Removing Sentinel SuperPro dongle from Applications and details on dongle way of cracking