# Wavelet Daubechies 20 (db20)

## Properties

Family: Daubechies (db)

Properties: asymmetric, orthogonal, biorthogonal.

## Wavelet and scaling functions

• Scaling function φ

• Wavelet function ψ

## Coefficients

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Decomposition low-pass filter (copy)
1. h0 = -0.0000000003
2. h1 =  0.0000000041
3. h2 = -0.0000000181
4. h3 =  0.0000000002
5. h4 =  0.0000002634
6. h5 = -0.0000006847
7. h6 = -0.0000010120
8. h7 =  0.0000072412
9. h8 = -0.0000043761
10. h9 = -0.0000371059
11. h10 =  0.0000677428
12. h11 =  0.0001015329
13. h12 = -0.0003851047
14. h13 = -0.0000534976
15. h14 =  0.0013925596
16. h15 = -0.0008315622
17. h16 = -0.0035814943
18. h17 =  0.0044205424
19. h18 =  0.0067216273
20. h19 = -0.0138105261
21. h20 = -0.0087893249
22. h21 =  0.0322942995
23. h22 =  0.0058746818
24. h23 = -0.0617228996
25. h24 =  0.0056322469
26. h25 =  0.1022917192
27. h26 = -0.0247168273
28. h27 = -0.1554587507
29. h28 =  0.0398502465
30. h29 =  0.2282910508
31. h30 = -0.0167270883
32. h31 = -0.3267868004
33. h32 = -0.1392120880
34. h33 =  0.3615022987
35. h34 =  0.6104932389
36. h35 =  0.4726961853
37. h36 =  0.2199421136
38. h37 =  0.0634237805
39. h38 =  0.0105493946
40. h39 =  0.0007799536
Reconstruction low-pass filter (copy)
1. h'0 =  0.0007799536
2. h'1 =  0.0105493946
3. h'2 =  0.0634237805
4. h'3 =  0.2199421136
5. h'4 =  0.4726961853
6. h'5 =  0.6104932389
7. h'6 =  0.3615022987
8. h'7 = -0.1392120880
9. h'8 = -0.3267868004
10. h'9 = -0.0167270883
11. h'10 =  0.2282910508
12. h'11 =  0.0398502465
13. h'12 = -0.1554587507
14. h'13 = -0.0247168273
15. h'14 =  0.1022917192
16. h'15 =  0.0056322469
17. h'16 = -0.0617228996
18. h'17 =  0.0058746818
19. h'18 =  0.0322942995
20. h'19 = -0.0087893249
21. h'20 = -0.0138105261
22. h'21 =  0.0067216273
23. h'22 =  0.0044205424
24. h'23 = -0.0035814943
25. h'24 = -0.0008315622
26. h'25 =  0.0013925596
27. h'26 = -0.0000534976
28. h'27 = -0.0003851047
29. h'28 =  0.0001015329
30. h'29 =  0.0000677428
31. h'30 = -0.0000371059
32. h'31 = -0.0000043761
33. h'32 =  0.0000072412
34. h'33 = -0.0000010120
35. h'34 = -0.0000006847
36. h'35 =  0.0000002634
37. h'36 =  0.0000000002
38. h'37 = -0.0000000181
39. h'38 =  0.0000000041
40. h'39 = -0.0000000003
Decomposition high-pass filter (copy)
1. g0 = -0.0007799536
2. g1 =  0.0105493946
3. g2 = -0.0634237805
4. g3 =  0.2199421136
5. g4 = -0.4726961853
6. g5 =  0.6104932389
7. g6 = -0.3615022987
8. g7 = -0.1392120880
9. g8 =  0.3267868004
10. g9 = -0.0167270883
11. g10 = -0.2282910508
12. g11 =  0.0398502465
13. g12 =  0.1554587507
14. g13 = -0.0247168273
15. g14 = -0.1022917192
16. g15 =  0.0056322469
17. g16 =  0.0617228996
18. g17 =  0.0058746818
19. g18 = -0.0322942995
20. g19 = -0.0087893249
21. g20 =  0.0138105261
22. g21 =  0.0067216273
23. g22 = -0.0044205424
24. g23 = -0.0035814943
25. g24 =  0.0008315622
26. g25 =  0.0013925596
27. g26 =  0.0000534976
28. g27 = -0.0003851047
29. g28 = -0.0001015329
30. g29 =  0.0000677428
31. g30 =  0.0000371059
32. g31 = -0.0000043761
33. g32 = -0.0000072412
34. g33 = -0.0000010120
35. g34 =  0.0000006847
36. g35 =  0.0000002634
37. g36 = -0.0000000002
38. g37 = -0.0000000181
39. g38 = -0.0000000041
40. g39 = -0.0000000003
Reconstruction high-pass filter (copy)
1. g'0 = -0.0000000003
2. g'1 = -0.0000000041
3. g'2 = -0.0000000181
4. g'3 = -0.0000000002
5. g'4 =  0.0000002634
6. g'5 =  0.0000006847
7. g'6 = -0.0000010120
8. g'7 = -0.0000072412
9. g'8 = -0.0000043761
10. g'9 =  0.0000371059
11. g'10 =  0.0000677428
12. g'11 = -0.0001015329
13. g'12 = -0.0003851047
14. g'13 =  0.0000534976
15. g'14 =  0.0013925596
16. g'15 =  0.0008315622
17. g'16 = -0.0035814943
18. g'17 = -0.0044205424
19. g'18 =  0.0067216273
20. g'19 =  0.0138105261
21. g'20 = -0.0087893249
22. g'21 = -0.0322942995
23. g'22 =  0.0058746818
24. g'23 =  0.0617228996
25. g'24 =  0.0056322469
26. g'25 = -0.1022917192
27. g'26 = -0.0247168273
28. g'27 =  0.1554587507
29. g'28 =  0.0398502465
30. g'29 = -0.2282910508
31. g'30 = -0.0167270883
32. g'31 =  0.3267868004
33. g'32 = -0.1392120880
34. g'33 = -0.3615022987
35. g'34 =  0.6104932389
36. g'35 = -0.4726961853
37. g'36 =  0.2199421136
38. g'37 = -0.0634237805
39. g'38 =  0.0105493946
40. g'39 = -0.0007799536