Home » Personal collection » Acorn tapes » Electron_User » Electron_User_tape21a_acorn_eu_1991_april.wav » Kam-2

Kam-2

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Personal collection » Acorn tapes » Electron_User » Electron_User_tape21a_acorn_eu_1991_april.wav
Filename: Kam-2
Read OK: ✔
File size: 02BC bytes
Load address: FFFF1900
Exec address: FFFF8023
Duplicates

There are 3 duplicate copies of this file in the archive:

File contents
   10REM > <basicsave$dir>.KAM_ATRAC2
   20PRINT"Strange Attractors 1"
   30PRINT"The KAM attractor"
   40PRINT"By Mike Cook"
   50PRINT"Press the space bar to get onto the next orbit"
   60REPEAT
   70INPUT"Enter a value for A (1.1 to 1.7) ",A
   80MODE0
   90CH%=0
  100orbit=0
  110PRINT TAB(0,31);"The KAM attractor By Mike Cook A = ";A;
  111PRINT TAB(55,31);"Space bar for next orbit";
  120sinA=SIN(A)
  130cosA=COS(A)
  140C%=0
  150REPEAT
  160orbit=orbit+0.1
  170PRINT TAB(0,0);"Orbit value ";orbit;SPC(6)
  180C%=C%+1
  200U=orbit/3
  210V=orbit/3
  220REPEAT
  230IF ABS(U)<1E6 AND  ABS(V)<1E6 THEN PLOT 69,(U*640)+640,(V*512)+512 ELSE PRINT TAB(0,0);"Chaos achieved ";SPC(6):CH%=1:GOTO 270
  240X=U*cosA-(V-U*U)*sinA
  250Y=U*sinA+(V-U*U)*cosA
  260U=X:V=Y
  270UNTIL INKEY(-99)
  280REPEAT
  290UNTIL NOT(INKEY(-99))
  300UNTIL CH%=1
  310PRINT TAB(0,0);
  320*FX21,0
  330UNTIL FALSE


"� > <basicsave$dir>.KAM_ATRAC2
�"Strange Attractors 1"
�"The KAM attractor"
(�"By Mike Cook"
25�"Press the space bar to get onto the next orbit"
<�
F*�"Enter a value for A (1.1 to 1.7) ",A
P�0
Z	CH%=0
dorbit=0
n5� �0,31);"The KAM attractor By Mike Cook A = ";A;
o)� �55,31);"Space bar for next orbit";
x
sinA=�(A)
�
cosA=�(A)
�C%=0
��
�orbit=orbit+0.1
�%� �0,0);"Orbit value ";orbit;�(6)
�C%=C%+1
�
U=orbit/3
�
V=orbit/3
��
�g� �(U)<1E6 �  �(V)<1E6 � � 69,(U*640)+640,(V*512)+512 � � �0,0);"Chaos achieved ";�(6):CH%=1:� �TNA
�X=U*cosA-(V-U*U)*sinA
�Y=U*sinA+(V-U*U)*cosA
U=X:V=Y
� �(-99)
�
"� �(�(-99))
,� CH%=1
6� �0,0);
@*FX21,0
J� �
�
00000000  0d 00 0a 22 f4 20 3e 20  3c 62 61 73 69 63 73 61  |...". > <basicsa|
00000010  76 65 24 64 69 72 3e 2e  4b 41 4d 5f 41 54 52 41  |ve$dir>.KAM_ATRA|
00000020  43 32 0d 00 14 1b f1 22  53 74 72 61 6e 67 65 20  |C2....."Strange |
00000030  41 74 74 72 61 63 74 6f  72 73 20 31 22 0d 00 1e  |Attractors 1"...|
00000040  18 f1 22 54 68 65 20 4b  41 4d 20 61 74 74 72 61  |.."The KAM attra|
00000050  63 74 6f 72 22 0d 00 28  13 f1 22 42 79 20 4d 69  |ctor"..(.."By Mi|
00000060  6b 65 20 43 6f 6f 6b 22  0d 00 32 35 f1 22 50 72  |ke Cook"..25."Pr|
00000070  65 73 73 20 74 68 65 20  73 70 61 63 65 20 62 61  |ess the space ba|
00000080  72 20 74 6f 20 67 65 74  20 6f 6e 74 6f 20 74 68  |r to get onto th|
00000090  65 20 6e 65 78 74 20 6f  72 62 69 74 22 0d 00 3c  |e next orbit"..<|
000000a0  05 f5 0d 00 46 2a e8 22  45 6e 74 65 72 20 61 20  |....F*."Enter a |
000000b0  76 61 6c 75 65 20 66 6f  72 20 41 20 28 31 2e 31  |value for A (1.1|
000000c0  20 74 6f 20 31 2e 37 29  20 22 2c 41 0d 00 50 06  | to 1.7) ",A..P.|
000000d0  eb 30 0d 00 5a 09 43 48  25 3d 30 0d 00 64 0b 6f  |.0..Z.CH%=0..d.o|
000000e0  72 62 69 74 3d 30 0d 00  6e 35 f1 20 8a 30 2c 33  |rbit=0..n5. .0,3|
000000f0  31 29 3b 22 54 68 65 20  4b 41 4d 20 61 74 74 72  |1);"The KAM attr|
00000100  61 63 74 6f 72 20 42 79  20 4d 69 6b 65 20 43 6f  |actor By Mike Co|
00000110  6f 6b 20 41 20 3d 20 22  3b 41 3b 0d 00 6f 29 f1  |ok A = ";A;..o).|
00000120  20 8a 35 35 2c 33 31 29  3b 22 53 70 61 63 65 20  | .55,31);"Space |
00000130  62 61 72 20 66 6f 72 20  6e 65 78 74 20 6f 72 62  |bar for next orb|
00000140  69 74 22 3b 0d 00 78 0d  73 69 6e 41 3d b5 28 41  |it";..x.sinA=.(A|
00000150  29 0d 00 82 0d 63 6f 73  41 3d 9b 28 41 29 0d 00  |)....cosA=.(A)..|
00000160  8c 08 43 25 3d 30 0d 00  96 05 f5 0d 00 a0 13 6f  |..C%=0.........o|
00000170  72 62 69 74 3d 6f 72 62  69 74 2b 30 2e 31 0d 00  |rbit=orbit+0.1..|
00000180  aa 25 f1 20 8a 30 2c 30  29 3b 22 4f 72 62 69 74  |.%. .0,0);"Orbit|
00000190  20 76 61 6c 75 65 20 22  3b 6f 72 62 69 74 3b 89  | value ";orbit;.|
000001a0  28 36 29 0d 00 b4 0b 43  25 3d 43 25 2b 31 0d 00  |(6)....C%=C%+1..|
000001b0  c8 0d 55 3d 6f 72 62 69  74 2f 33 0d 00 d2 0d 56  |..U=orbit/3....V|
000001c0  3d 6f 72 62 69 74 2f 33  0d 00 dc 05 f5 0d 00 e6  |=orbit/3........|
000001d0  67 e7 20 94 28 55 29 3c  31 45 36 20 80 20 20 94  |g. .(U)<1E6 .  .|
000001e0  28 56 29 3c 31 45 36 20  8c 20 f0 20 36 39 2c 28  |(V)<1E6 . . 69,(|
000001f0  55 2a 36 34 30 29 2b 36  34 30 2c 28 56 2a 35 31  |U*640)+640,(V*51|
00000200  32 29 2b 35 31 32 20 8b  20 f1 20 8a 30 2c 30 29  |2)+512 . . .0,0)|
00000210  3b 22 43 68 61 6f 73 20  61 63 68 69 65 76 65 64  |;"Chaos achieved|
00000220  20 22 3b 89 28 36 29 3a  43 48 25 3d 31 3a e5 20  | ";.(6):CH%=1:. |
00000230  8d 54 4e 41 0d 00 f0 19  58 3d 55 2a 63 6f 73 41  |.TNA....X=U*cosA|
00000240  2d 28 56 2d 55 2a 55 29  2a 73 69 6e 41 0d 00 fa  |-(V-U*U)*sinA...|
00000250  19 59 3d 55 2a 73 69 6e  41 2b 28 56 2d 55 2a 55  |.Y=U*sinA+(V-U*U|
00000260  29 2a 63 6f 73 41 0d 01  04 0b 55 3d 58 3a 56 3d  |)*cosA....U=X:V=|
00000270  59 0d 01 0e 0c fd 20 a6  28 2d 39 39 29 0d 01 18  |Y..... .(-99)...|
00000280  05 f5 0d 01 22 0f fd 20  ac 28 a6 28 2d 39 39 29  |....".. .(.(-99)|
00000290  29 0d 01 2c 0b fd 20 43  48 25 3d 31 0d 01 36 0c  |)..,.. CH%=1..6.|
000002a0  f1 20 8a 30 2c 30 29 3b  0d 01 40 0b 2a 46 58 32  |. .0,0);..@.*FX2|
000002b0  31 2c 30 0d 01 4a 07 fd  20 a3 0d ff              |1,0..J.. ...|
000002bc
Kam-2.m0
Kam-2.m1
Kam-2.m2
Kam-2.m4
Kam-2.m5

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