最後の電子科コミュの応用電子

来週プログラム書かせるらしいじゃん！？

今日時間あったんで書いてみました。だれかチェックして！！

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#include <math.h>
#include <stdio.h>

#define M_PI 3.14159265358979

int main(void){
int n=0,k=0;
int Xn[16] = {32,49,59,58,48,35,27,27,32,37,37,29,16,6,5,15};
double A=0,B=0,C=0;

for(k=0; k<=15; k++){
for(n=0; n<=15; n++){
C = Xn[n]*cos(2*M_PI*n*k/16);
A += C;
}
printf("A%d = %lf \n",k,A);
A=0;
}

for(k=0; k<=15; k++){
for(n=0; n<=15; n++){
C = Xn[n]*sin(2*M_PI*n*k/16);
B += C;
}
printf("B%d = %lf \n",k,B);
B=0;
}

return(0);
}
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実行結果
A0 = 512.000000
A1 = -0.000000
A2 = 0.000000
A3 = -0.000000
A4 = -0.000000
A5 = -0.000000
A6 = -0.000000
A7 = 0.000000
A8 = 0.000000
A9 = 0.000000
A10 = 0.000000
A11 = 0.000000
A12 = 0.000000
A13 = 0.000000
A14 = -0.000000
A15 = 0.000000
B0 = 0.000000
B1 = 125.882114
B2 = 127.639610
B3 = -0.909832
B4 = -2.000000
B5 = 0.864771
B6 = -0.360390
B7 = -0.343283
B8 = 0.000000
B9 = 0.343283
B10 = 0.360390
B11 = -0.864771
B12 = 2.000000
B13 = 0.909832
B14 = -127.639610
B15 = -125.882114

Aがゼロばっかだー