Quyidagi oddiy C tilidagi FFT funksiyasi: #include <math.h> #include <stdlib.h> #include <stdio.h> /* 定義複數構造体 */ typedef struct { double real; double imaginary; } Complex; /* 複數加法 */ Complex add(Complex a, Complex b) { Complex c; c.real = a.real + b.real; c.imaginary = a.imaginary + b.imaginary; return c; } /* 複數減法 */ Complex subtract(Complex a, Complex b) { Complex; c.real = a. - b.real; c.imaginary = a.imaginary - b.imaginary - b.imaginary; return } / c * * * * * * * * *
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