Nifty little vector2 get angle function

If you're working with Vector2's in XNA, or any other platform really, some functions you'd think should be on a vector object in your given framework just aren't. With XNA, it was the ability to get an angle from a vector. So I made one. This returns the angle the Vector2 is currently at.

   1:   public static float GetAngle(Vector2 vector)

   2:          {

   3:              float x = vector.X;

   4:              float y = vector.Y;

   5:              float angle = 0f;

   6:   

   7:              //Gets Angle

   8:              if (Math.Abs(x) < Math.Pow(10, -6))

   9:              {

  10:                  if (Math.Abs(y) < Math.Pow(10, -6)) { angle = 0f; }

  11:                  else if (y > 0) { angle = 90f; }

  12:                  else if (y < 0) { angle = 270f; }

  13:              }

  14:              else if (x > 0)

  15:              {

  16:                  if (y >= 0) { angle = (float)(180 * Math.Atan(y / x) / Math.PI); }

  17:                  else if (y < 0) { angle = (float)(180 * Math.Atan(y / x) / Math.PI - (-1) * 360); }

  18:              }

  19:              else if (x < 0)

  20:              {

  21:                  if (y >= 0) { angle = (float)(180 - 180 * Math.Atan(-y / x) / Math.PI); }

  22:                  else if (y < 0) { angle = (float)(-180 - (-1) * 180 * Math.Atan(y / x) / Math.PI - (-1) * 360); }

  23:              }

  24:   

  25:              return angle;

  26:          }