n

Fast algorithm

Iter algorithm

Fast algorithm

Iter algorithm

CPU

R

CPU

R

CPU

R

CPU

R

2¹⁹

2.155e−2

4.612e−13

4.906e−1

6.614e−16

2.381e−2

1.021e−13

3.987e−1

7.111e−16

2²⁰

4.449e−2

6.523e−13

9.057e−1

9.353e−16

4.512e−2

1.444e−13

8.595e−1

9.944e−16

2²¹

9.401e−2

9.225e−13

1.827e+0

1.323e−16

9.031e−2

2.042e−13

1.551e+0

1.463e−16