complex.h

用快速傅立叶变换做的快速卷积,计算速度快.

#define PI 3.1415926

struct Complex{
  double real;
  double imag;
};

Complex complexAdd(Complex c1,Complex c2);

Complex complexDec(Complex c1,Complex c2);

Complex complexEE(Complex c1,Complex c2);

Complex complexRC(double f,Complex c);

Complex complexG(Complex c);

void show(Complex c);