Actual coordinates

Output coordinates

Error function

(10, 10)

(10.206, 11.905)

1.918

(10, 50)

(12.197, 51.821)

2.853

(30, 30)

(31.281, 30.924)

1.579

(50, 50)

(48.791, 52.121)

2.441

(70, 70)

(72.129, 71.190)

2.439

(20, 40)

(18.971, 41.692)

1.980

(40, 40)

(41.071, 42.219)

2.464

(60, 20)

(62.137, 21.961)

2.900

(60, 60)

(59.562, 62.107)

2.152

(70, 40)

(71.152, 38.183)

2.151