Une période unique fait résonner toutes les fractions de n/97 en base 7.  

Le microscope numérique permet alors d'en observer le graphe. 

1/97=0,003351606365325124120435526130502345224455626465663315060301341542546231140536164321442211040201...

2/97=0,010033516063653251241204355261305023452244556264656633150603013415425462311405361643214422110402...

3/97=0,013415425462311405361643214422110402010033516063653251241204355261305023452244556264656633150603...

4/97=0,020100335160636532512412043552613050234522445562646566331506030134154254623114053616432144221104...

5/97=0,023452244556264656633150603013415425462311405361643214422110402010033516063653251241204355261305...

6/97=0,030134154254623114053616432144221104020100335160636532512412043552613050234522445562646566331506...

7/97=0,033516063653251241204355261305023452244556264656633150603013415425462311405361643214422110402010...

8/97=0,040201003351606365325124120435526130502345224455626465663315060301341542546231140536164321442211...

9/97=0,043552613050234522445562646566331506030134154254623114053616432144221104020100335160636532512412...

10/97=0,050234522445562646566331506030134154254623114053616432144221104020100335160636532512412043552613...

11/97=0,053616432144221104020100335160636532512412043552613050234522445562646566331506030134154254623114...

12/97=0,060301341542546231140536164321442211040201003351606365325124120435526130502345224455626465663315...

13/97=0,063653251241204355261305023452244556264656633150603013415425462311405361643214422110402010033516...

14/97=0,100335160636532512412043552613050234522445562646566331506030134154254623114053616432144221104020...

15/97=0,104020100335160636532512412043552613050234522445562646566331506030134154254623114053616432144221...

16/97=0,110402010033516063653251241204355261305023452244556264656633150603013415425462311405361643214422...

17/97=0,114053616432144221104020100335160636532512412043552613050234522445562646566331506030134154254623...

18/97=0,120435526130502345224455626465663315060301341542546231140536164321442211040201003351606365325124...

19/97=0,124120435526130502345224455626465663315060301341542546231140536164321442211040201003351606365325...

20/97=0,130502345224455626465663315060301341542546231140536164321442211040201003351606365325124120435526...

21/97=0,134154254623114053616432144221104020100335160636532512412043552613050234522445562646566331506030...

22/97=0,140536164321442211040201003351606365325124120435526130502345224455626465663315060301341542546231...

23/97=0,144221104020100335160636532512412043552613050234522445562646566331506030134154254623114053616432...

24/97=0,150603013415425462311405361643214422110402010033516063653251241204355261305023452244556264656633...

25/97=0,154254623114053616432144221104020100335160636532512412043552613050234522445562646566331506030134...

26/97=0,160636532512412043552613050234522445562646566331506030134154254623114053616432144221104020100335...

27/97=0,164321442211040201003351606365325124120435526130502345224455626465663315060301341542546231140536...

28/97=0,201003351606365325124120435526130502345224455626465663315060301341542546231140536164321442211040...

29/97=0,204355261305023452244556264656633150603013415425462311405361643214422110402010033516063653251241...

30/97=0,211040201003351606365325124120435526130502345224455626465663315060301341542546231140536164321442...

31/97=0,214422110402010033516063653251241204355261305023452244556264656633150603013415425462311405361643...

32/97=0,221104020100335160636532512412043552613050234522445562646566331506030134154254623114053616432144...

33/97=0,224455626465663315060301341542546231140536164321442211040201003351606365325124120435526130502345...

34/97=0,231140536164321442211040201003351606365325124120435526130502345224455626465663315060301341542546...

35/97=0,234522445562646566331506030134154254623114053616432144221104020100335160636532512412043552613050...

36/97=0,241204355261305023452244556264656633150603013415425462311405361643214422110402010033516063653251...

37/97=0,244556264656633150603013415425462311405361643214422110402010033516063653251241204355261305023452...

38/97=0,251241204355261305023452244556264656633150603013415425462311405361643214422110402010033516063653...

39/97=0,254623114053616432144221104020100335160636532512412043552613050234522445562646566331506030134154...

40/97=0,261305023452244556264656633150603013415425462311405361643214422110402010033516063653251241204355...

41/97=0,264656633150603013415425462311405361643214422110402010033516063653251241204355261305023452244556...

42/97=0,301341542546231140536164321442211040201003351606365325124120435526130502345224455626465663315060...

43/97=0,305023452244556264656633150603013415425462311405361643214422110402010033516063653251241204355261...

44/97=0,311405361643214422110402010033516063653251241204355261305023452244556264656633150603013415425462...

45/97=0,315060301341542546231140536164321442211040201003351606365325124120435526130502345224455626465663...

46/97=0,321442211040201003351606365325124120435526130502345224455626465663315060301341542546231140536164...

47/97=0,325124120435526130502345224455626465663315060301341542546231140536164321442211040201003351606365...

48/97=0,331506030134154254623114053616432144221104020100335160636532512412043552613050234522445562646566...

49/97=0,335160636532512412043552613050234522445562646566331506030134154254623114053616432144221104020100...

50/97=0,341542546231140536164321442211040201003351606365325124120435526130502345224455626465663315060301...

51/97=0,345224455626465663315060301341542546231140536164321442211040201003351606365325124120435526130502...

52/97=0,351606365325124120435526130502345224455626465663315060301341542546231140536164321442211040201003...

53/97=0,355261305023452244556264656633150603013415425462311405361643214422110402010033516063653251241204...

54/97=0,361643214422110402010033516063653251241204355261305023452244556264656633150603013415425462311405...

55/97=0,365325124120435526130502345224455626465663315060301341542546231140536164321442211040201003351606...

56/97=0,402010033516063653251241204355261305023452244556264656633150603013415425462311405361643214422110...

57/97=0,405361643214422110402010033516063653251241204355261305023452244556264656633150603013415425462311...

58/97=0,412043552613050234522445562646566331506030134154254623114053616432144221104020100335160636532512...

59/97=0,415425462311405361643214422110402010033516063653251241204355261305023452244556264656633150603013...

60/97=0,422110402010033516063653251241204355261305023452244556264656633150603013415425462311405361643214...

61/97=0,425462311405361643214422110402010033516063653251241204355261305023452244556264656633150603013415...

62/97=0,432144221104020100335160636532512412043552613050234522445562646566331506030134154254623114053616...

63/97=0,435526130502345224455626465663315060301341542546231140536164321442211040201003351606365325124120...

64/97=0,442211040201003351606365325124120435526130502345224455626465663315060301341542546231140536164321...

65/97=0,445562646566331506030134154254623114053616432144221104020100335160636532512412043552613050234522...

66/97=0,452244556264656633150603013415425462311405361643214422110402010033516063653251241204355261305023...

67/97=0,455626465663315060301341542546231140536164321442211040201003351606365325124120435526130502345224...

68/97=0,462311405361643214422110402010033516063653251241204355261305023452244556264656633150603013415425...

69/97=0,465663315060301341542546231140536164321442211040201003351606365325124120435526130502345224455626...

70/97=0,502345224455626465663315060301341542546231140536164321442211040201003351606365325124120435526130...

71/97=0,506030134154254623114053616432144221104020100335160636532512412043552613050234522445562646566331...

72/97=0,512412043552613050234522445562646566331506030134154254623114053616432144221104020100335160636532...

73/97=0,516063653251241204355261305023452244556264656633150603013415425462311405361643214422110402010033...

74/97=0,522445562646566331506030134154254623114053616432144221104020100335160636532512412043552613050234...

75/97=0,526130502345224455626465663315060301341542546231140536164321442211040201003351606365325124120435...

76/97=0,532512412043552613050234522445562646566331506030134154254623114053616432144221104020100335160636...

77/97=0,536164321442211040201003351606365325124120435526130502345224455626465663315060301341542546231140...

78/97=0,542546231140536164321442211040201003351606365325124120435526130502345224455626465663315060301341...

79/97=0,546231140536164321442211040201003351606365325124120435526130502345224455626465663315060301341542...

80/97=0,552613050234522445562646566331506030134154254623114053616432144221104020100335160636532512412043...

81/97=0,556264656633150603013415425462311405361643214422110402010033516063653251241204355261305023452244...

82/97=0,562646566331506030134154254623114053616432144221104020100335160636532512412043552613050234522445...

83/97=0,566331506030134154254623114053616432144221104020100335160636532512412043552613050234522445562646...

84/97=0,603013415425462311405361643214422110402010033516063653251241204355261305023452244556264656633150...

85/97=0,606365325124120435526130502345224455626465663315060301341542546231140536164321442211040201003351...

86/97=0,613050234522445562646566331506030134154254623114053616432144221104020100335160636532512412043552...

87/97=0,616432144221104020100335160636532512412043552613050234522445562646566331506030134154254623114053...

88/97=0,623114053616432144221104020100335160636532512412043552613050234522445562646566331506030134154254...

89/97=0,626465663315060301341542546231140536164321442211040201003351606365325124120435526130502345224455...

90/97=0,633150603013415425462311405361643214422110402010033516063653251241204355261305023452244556264656...

91/97=0,636532512412043552613050234522445562646566331506030134154254623114053616432144221104020100335160...

92/97=0,643214422110402010033516063653251241204355261305023452244556264656633150603013415425462311405361...

93/97=0,646566331506030134154254623114053616432144221104020100335160636532512412043552613050234522445562...

94/97=0,653251241204355261305023452244556264656633150603013415425462311405361643214422110402010033516063...

95/97=0,656633150603013415425462311405361643214422110402010033516063653251241204355261305023452244556264...

96/97=0,663315060301341542546231140536164321442211040201003351606365325124120435526130502345224455626465...