电阻调试程序，用于自动量程切换的折算因子校正！-Resistance debugger for automatic range switching commutation factor correction!

FFT算法的C语言实现，内含有复数的加法，乘法，减法，输入序列的倒序，旋转因子的确认，FFT算法的实现-FFT algorithm C language, containing reverse complex addition, multiplication, subtraction, input sequence, rotation confirmation factor FFT algorithm to achieve