用于将两个两字节十六进制数据转为浮点数后进行乘除加法运算-for two to two-byte hexadecimal data to float after multiplication and division operations Adder

用差表法实现sin和cos函数，浮点运算实现采样点数可变化的fft函数-Realization of sin and cos functions, floating point differential table method of sampling points can be varied to achieve fft function

二进制定点数运算/二进制浮点数运算/十进制（BCD码）数运算/代码转换/数据变换/排序、查找和非线性算法/数学函数/树和图/ 延时与跳转控制/人机交互接口/单片机测控接口/51单片机内部资源编程实例/单片机数据传输接口/波形发生与控制实例/C51单片机软件抗干扰和数字滤波-Binary fixed-point number operations/binary floating-point operations/decimal (BCD) operation/sorting/code conver