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ファイルへの入出力
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ファイルへの入出力. C の導入. #include <stdio.h> int main() printf(“Hello!<br>”); return 0; }. #include <math.h> #include <stdio.h> int main() { FILE *fp = fopen("data.csv","w"); int i; float x[101],y[101],pi; pi = 3.141592; for (i = 0; i <=100; i++) { x[i]=2.0*i/100.0*pi;
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ファイルへの入出力
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Cの導入 #include <stdio.h> int main() printf(“Hello!\n”); return 0; }
#include <math.h> #include <stdio.h> int main() { FILE *fp = fopen("data.csv","w"); int i; float x[101],y[101],pi; pi = 3.141592; for (i = 0; i <=100; i++) { x[i]=2.0*i/100.0*pi; y[i]=sin(x[i]); fprintf(fp,"%d,%f,%f\n",i,x[i],y[i]); } fclose(fp); return 0; } ファイル書込みの例
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