code: private static float[] calcExpTable() {
      float[] expTable = new float[EXP_TABLE_SIZE];
      for (int i = 0; i < EXP_TABLE_SIZE; i++) {
        expTable[i] = (float) Math.exp((i / (float) EXP_TABLE_SIZE * 2 - 1) * MAX_EXP);
        expTable[i] = expTable[i] / (expTable[i] + 1);  // Precompute f(x) = x / (x + 1)
      }
      return expTable;
    }
docs: Precompute the exp() table