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A function to calculate an average

#include <stdio.h> #include <stdlib.h> #include <ctype.h> double average(double data[], int count) { int j = 0; double sum = 0.0; for( j = 0 ; j<count ; sum += data[j++]) ; return sum/count; } int main() { double data[3]; data[0] = 1; data[1] = 2; data[2] = 3; printf("\nThe average of thew values you entered is %10.2lf\n", average(data, 3)); free(data); }