N + 1

5

10

20

40

80

max n e n

1.786 × 10 1

4.367 × 10 2

1.074 × 10 2

2.801 × 10 3

8.860 × 10 3

max n e n 1

9.265 × 10 2

2.462 × 10 2

6.210 × 10 3

1.602 × 10 3

4.673 × 10 4

Conv.rate

1.919

1.987

1.954

1.778