快速Fourier变换的代码，基2算法，且和原始定义的Fourier变换算法进行了对比。-Fast Fourier Transform code, the base 2 algorithm, and the original definition of the Fourier transform algorithm were compared.

FFT 基2变换源程序，matlab测试与系统函数变换结果一致-Radix-2 FFT transform source code, matlab test results are consistent with the system function transformation