Level ∀ϵ＞0∃δ0 : 0 ＜| x - c| ＜δ⇒|f(x) - L | ＜ϵ  

4-5-19-3-18-9-16-20-9-15-14

12-5-22-5-12 ∀ϵ＞0∃δ0 : 0 ＜| x - c| ＜δ⇒|f(x) - L | ＜ϵ   9-19 1-14 5-14-9-7-13-1-20-9-3 12-5-22-5-12 20-8-1-20 1-3-20-21-1-12-12-25 1-20-20-5-13-16-20-19 20-15 8-9-4-5 9-20-19-5-12-6 9-14 20-8-5 16-18-15-7-18-5-19-19-9-22-5-18-15-15-13-19 4-1-20-1-2-1-19-5. 1-19 25-15-21 3-1-14 19-5-5,  20-8-5 16-1-7-5 9-19 5-14-3-15-4-5-4 23-9-20-8-9-14 1 3-9-16-8-5-18 3-1-12-12-5-4 1-15-14-5-26-20-23-5-14-20-25-19-9-24 3-9-16-8-5-18. 8-15-23-5-22-5-18, 9-20 19-5-5-13-19 20-8-5 1-22-5-18-1-7-5 16-5-18-19-15-14 3-1-14-14-15-20 20-5-12-12 20-8-5-18-5 9-19 1 3-9-16-8-5-18 8-5-18-5. 9-20 19-5-5-13-19 20-8-5 1-22-5-18-1-7-5 16-5-18-19-15-14 3-1-14-14-15-20 20-5-12-12 20-8-5-18-5 9-19 1 3-9-16-8-5-18 8-5-18-5, 19-15 23-5'12-12 8-1-22-5 20-15 12-5-1-22-5 9-20 1-20 20-8-5-18-5. 15-11, 14-15-23 20-15 5-24-16-12-1-9-14 20-8-9-19 12-5-22-5-12. 20-8-5-18-5 9-19 14-15 16-8-15-20-15 16-18-15-22-9-4-5-4 1-2-15-21-20 20-8-5 12-5-22-5-12 2-5-3-1-21-19-5 23-5-12-12, 20-8-5 12-5-22-5-12 9-19 8-9-4-4-5-14 1-14-4 9-19 9-13-16-15-19-19-9-2-12-5 20-15 16-8-15-20-15-7-18-1-16-8. 9-20 23-1-19 4-5-19-3-18-9-2-5-4 20-15 2-5 1 12-5-22-5-12 20-8-1-20 12-15-15-11-19 12-9-11-5 20-8-5 1-22-5-18-1-7-5 193019 8-15-21-19-5. 9-20 8-1-19 1-12-12 6-9-14-5 6-21-18-14-9-20-21-18-5, 2-21-20 15-14-5 22-9-20-1-12 20-8-9-14-7 9-19 13-9-19-19-9-14-7 6-18-15-13 20-8-5 12-5-22-5-12. 20-8-5-18-5 9-19 14-15 3-15-12-15-18 19-5-5-14, 5-22-5-14 25-15-21-18 15-23-14 2-15-4-25 9-19 15-6 12-1-3-11 15-6 3-15-12-15-18, 19-15 9-20 9-19 4-9-6-6-9-3-21-12-20 20-15 4-5-19-3-18-9-2-5 20-8-5 3-15-12-15-18 1-14-4 16-9-7-13-5-14-20 15-6 20-8-5 12-5-22-5-12. 15-20-8-5-18 20-8-1-14 20-8-1-20, 14-15 15-20-8-5-18 9-14-6-15-18-13-1-20-9-15-14 9-19 11-14-15-23-14 1-2-15-21-20 20-8-5 12-5-22-5-12. 14-15 5-24-9-20 9-19 11-14-15-23-14 2-21-20 15-14-12-25 15-14-5 5-14-20-18-1-14-3-5 8-1-19 2-5-5-14 4-15-3-21-13-5-14-20-5-4 2-25 20-8-5 16.1.5., 19-5-5 20-8-5 5-14-20-18-1-14-3-5-19 1-14-4 5-24-9-20-19 19-5-3-20-9-15-14 15-6 20-8-9-19 16-1-7-5 6-15-18 13-15-18-5 9-14-6-15.

20-8-5 12-5-22-5-12 9-19 1-12-19-15 3-1-12-12-5-4 12-5-22-5-12 12-9-13-9-20 2-25 19-15-13-5, 1-3-20-21-1-12-12-25 9-20 19-8-15-21-12-4 1-16-16-12-25 20-15 5-22-5-18-25-15-14-5 19-9-14-3-5 20-8-5 20-9-20-12-5 15-6 20-8-9-19 12-5-22-5-12 9-19 16-12-1-9-14 15-21-20 2-1-6-6-12-9-14-7.