📄 fft.h
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#define PI 3.141592653589793238
typedef struct POLYNOMAIL
{
int MaxExp;
int* Coefficient;
}poly;
typedef struct COMPLEX_NUMBER
{
double real;
double imagine;
}MyComplex;
void InitializePoly(poly* p, int m, int* co);
MyComplex* FFT(int size, MyComplex* Array, MyComplex C);
MyComplex Exp(MyComplex c, int exp);
MyComplex Mult(MyComplex a, MyComplex b);
MyComplex Add(MyComplex a, MyComplex b);
MyComplex Sub(MyComplex a, MyComplex b);
MyComplex Inv(MyComplex a);
void Equal(MyComplex* a, MyComplex b);
int GetUpExpo(int);
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