#include #include #define A 100 void graph(double num[], int z); int main() { int col, z=0, n=0; double col2[A], half[A]; FILE *data; data = fopen("textfile.txt", "r"); while (fscanf(data, "%lf %lf", &col, &col2[z]) == 2) { half[n] = col2[z]/2; printf("\n%d %lf\n", col, half[n]); graph(half[n], col); z++; n++; } fclose(data); return 0; } /* Is there something wrong with the function? ...