Názorná ukážka :
Rad mínus
- 40
- 37...........71 = 34 + 37
- 34
- 31...........59 = 28 + 31
- 28...........53 = 25 + 28
- 25...........47 = 22 + 25
- 22...........41 = 19 + 22
- 19
- 16...........29 = 13 + 16
- 13...........23 = 10 + 13
- 10...........17 = 7 + 10
- 7.............11 = 4 + 7
- 4...............5 = 1 + 4
- 1
Rad plus
2................3 = - 1 + 2
5................7 = 2 + 5
8..............13 = 5 + 8
11............19 = 8 + 11
14
17............31 = 14 + 17
20............37 = 17 + 20
23............43 = 20 + 23
26
29
32............61 = 29 + 32
35............67 = 32 + 35
38............73 = 35 + 38
41............79 = 38 + 41