sorting values in array issue

so i tried sorting arr2 from lowest to highest value, but it only gives me 4 values and then the rest are zero. Any thoughts on how to fix this?

Code:

---

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
  cout << fixed << setprecision(1);
  float userMin;
  float userMax;
  const int SIZE = 21;
  float arr[SIZE];
  const int SIZE2 = 21;
  float arr2[SIZE2];
  int count = 0;
  cout << "enter min ";
  cin >> userMin;
  cout << "enter max ";
  cin >> userMax;
  float inc = (userMax - userMin) / (SIZE-1);
  float x = inc*count + userMin;
  for (; x <= userMax;)
  {
      for (int e = 0; e < SIZE; e++)
      {
        arr[e] = x;
        arr2[e] = (0.0572*cos(4.667*x) + 0.0218*cos(12.22*x));
        cout << setw(15) << setprecision(1)<< arr[e]
            << setw(15) << setprecision(3) << arr2[e]
            << endl;
        count++;
        x = userMin + inc*count;
      }
  }
  int temp;
      for (int e = 0; e < SIZE-1; e++)
      {
        for (int j = e+1; j < SIZE; j++)
        {
            if (arr2[e] > arr2[j])
            {
              temp = arr2[e];
              arr2[e] = arr2[j];
              arr2[j] = temp;
            }
        }
      }
      for (int e = 0; e < SIZE; e++)
      {
        cout << "sorted: " << arr2[e] << endl;
      }
  return 0;
}

---

Yeh, you have some truncaiton-to-integer issues here:

Code:

---

int temp;
      for (int e = 0; e < SIZE-1; e++)
      {
        for (int j = e+1; j < SIZE; j++)
        {
            if (arr2[e] > arr2[j])
            {
              temp = arr2[e];
              arr2[e] = arr2[j];
              arr2[j] = temp;
            }
        }
      }

---

Whenever you assign a float to the integer temp, the sub-zero part is thrown away, which will obviously leave you with 0 for smal numbers.

IF you use a float fior temp you'll be fine.