There are many floating - point functions in the process of fingerprint feature extraction and feature matching processes 指纹特征提取和特征匹配的过程中,存在大量的浮点运算。
The intrinsic floating - point functions do not perform any special checks on input values and so work in restricted ranges of input , and have different exception handling and boundary conditions than the library routines with the same name 内部浮点函数不对输入值执行任何特殊检查,因此只在有限的输入范围内有效,且与同名库例程具有不同的异常处理和边界条件。