复数FFT C语言代码

复数FFT C语言代码 struct compx EE(struct compx b1,struct compx b2) { struct compx b3; b3.real=b1.real*b2.real-b1.imag*b2.imag; b3.imag=b1.real*b2.imag+b1.imag*b2.real; return(b3); }